公开(公告)号：US20110035475A1

公开(公告)日：2011-02-10

申请号：US12908613

申请日：2010-10-20

Applicant: John D. RALSTON ,  Ravi Subramanian ,  Song Chen ,  Ted E. Williams

Inventor： John D. RALSTON ,  Ravi Subramanian ,  Song Chen ,  Ted E. Williams

IPC: G06F15/177

CPC classification number: H04B1/0003 ,  H04B1/40 ,  H04M1/72525 ,  H04M3/42178

Abstract: An efficient software download to a configurable communication device is disclosed herein. The method of efficiently downloading software begins with a step of receiving a request to configure a communication device to run a communication application. The communication device being configured has a plurality of function blocks with a fixed portion of hardware and a flexible portion of hardware, wherein the same plurality of function blocks is capable of operating a plurality of communication applications. In a next step, the capability of the fixed portion and the flexible portion of hardware of the communication device is evaluated for a capability of implementing the communication application. Next, configuration information only for the flexible portion of hardware of the communication device is transmitted to the communication device to enable it to operate the communication application. An identification of the communication application is also transmitted to the communication device for purposes of tracking its implementation.

Abstract translation: 本文公开了向可配置通信设备的有效软件下载。 有效下载软件的方法从接收到配置通信设备以运行通信应用的请求的步骤开始。 配置的通信设备具有多个具有固定部分硬件和硬件的灵活部分的功能块，其中相同的多个功能块能够操作多个通信应用。 在下一步骤中，评估通信设备的固定部分和硬件的灵活部分的能力，以实现通信应用的能力。 接下来，仅将用于通信设备的硬件的灵活部分的配置信息发送到通信设备以使其能够操作通信应用。 通信应用的标识也被发送到通信设备，以便跟踪其实现。

公开(公告)号：US07499695B2

公开(公告)日：2009-03-03

申请号：US11317220

申请日：2005-12-22

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: H04B1/16

CPC classification number: H04B1/0003 ,  H04B1/0007 ,  H04B1/28 ,  H04B1/406 ,  H04B1/70735 ,  H04B1/7085 ,  H04B2201/70701 ,  H04B2201/70711 ,  H04L25/0204

Abstract: A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.

Abstract translation: 本文公开了一种用于扩频数字通信的可配置全数字相干解调器系统。 解调器系统包括耦合到业务信道解调器（TCD）和参数估计器（PE）的扩展和长码解调器（ELCD）。 解调器还包括耦合到PE和TCD的导频辅助校正装置（PACD）。 ELCD向TCD和PE提供码解调信号。 反过来，TCD向PE提供解调的输出数据信号。 基于从PE馈送的误差估计，PACD校正解调输出数据的相位误差。 ELCD，TCD和PE中的累加操作都可编程。 类似地，PACD中的相位延迟也是可编程的，以提供与来自PE的误差估计的同步。

公开(公告)号：US07254649B2

公开(公告)日：2007-08-07

申请号：US11198692

申请日：2005-08-05

Applicant: Ravi Subramanian ,  Uma Jha ,  Joel D. Medlock

Inventor： Ravi Subramanian ,  Uma Jha ,  Joel D. Medlock

IPC: G06F13/10 ,  H04B1/38

CPC classification number: H04B1/0003 ,  H04B1/707 ,  H04B2201/7071 ,  H04B2201/70711

Abstract: A wireless spread spectrum communication platform for processing a communication signal is disclosed herein. The wireless communication platform includes a first computing element, a second computing element, and a reconfigurable interconnect. The first computing element is coupled to the second computing element via the reconfigurable interconnect. A design configuration of the first computing element is heterogeneous with respect to a design configuration of the second computing element. The reconfigurable interconnect has an uncommitted architecture, thereby allowing it to be configured by an outside source to couple portions of the first reconfigurable interconnect with portions of the second reconfigurable interconnect in a variety of combinations. The first computing element, the second computing element, and the reconfigurable interconnect operable to perform discrete functions suitable for processing of the communication signal.

Abstract translation: 本文公开了一种用于处理通信信号的无线扩频通信平台。 无线通信平台包括第一计算元件，第二计算元件和可重构互连。 第一计算元件经由可重构互连耦合到第二计算元件。 关于第二计算元件的设计配置，第一计算元件的设计配置是异构的。 可重配置互连具有未提交的架构，从而允许其由外部源配置以将第一可重配置互连的部分以各种组合耦合第二可重配置互连的部分。 第一计算元件，第二计算元件和可重构互连可操作以执行适于处理通信信号的离散功能。

公开(公告)号：US20060133552A1

公开(公告)日：2006-06-22

申请号：US11317220

申请日：2005-12-22

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: H04B1/10

CPC classification number: H04B1/0003 ,  H04B1/0007 ,  H04B1/28 ,  H04B1/406 ,  H04B1/70735 ,  H04B1/7085 ,  H04B2201/70701 ,  H04B2201/70711 ,  H04L25/0204

Abstract: A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.

公开(公告)号：US06967999B2

公开(公告)日：2005-11-22

申请号：US09752050

申请日：2000-12-29

Applicant: Ravi Subramanian ,  Keith Rieken ,  Uma Jha ,  Joel D. Medlock ,  Christopher C. Woodthorpe

Inventor： Ravi Subramanian ,  Keith Rieken ,  Uma Jha ,  Joel D. Medlock ,  Christopher C. Woodthorpe

IPC: H04B1/40 ,  H04B17/00 ,  H04L12/56 ,  H04L25/00 ,  H04L27/00 ,  H04W24/00 ,  H04W28/10 ,  H04W88/08 ,  H04W88/10

CPC classification number: H04B1/0007 ,  H04B1/0003 ,  H04B1/406 ,  H04W24/00 ,  H04W28/10 ,  H04W88/08 ,  H04W88/10

Abstract: An apparatus for digitally processing signals within wireless communications base-stations which includes a channel pooling signal processor and a digital signal processor. The channel pooling signal processor includes a plurality of computation units typically realized in a heterogeneous multiprocessing architecture, a test interface for testing the function of the plurality of the computation units, a general-purpose microprocessor for managing the dataflow into and out of the channel pooling signal processor as well as effecting the control and configuration of the computation units, and an interconnect mechanism for connecting the plurality of computation units to the input, output, test interface, and the general-purpose microprocessor.

Abstract translation: 一种用于数字处理无线通信基站内的信号的装置，包括信道汇集信号处理器和数字信号处理器。 信道池信号处理器包括通常在异构多处理架构中实现的多个计算单元，用于测试多个计算单元的功能的测试接口，用于管理数据流进出信道池的通用微处理器 信号处理器以及实现计算单元的控制和配置，以及用于将多个计算单元连接到输入，输出，测试接口和通用微处理器的互连机构。

公开(公告)号：US06807155B1

公开(公告)日：2004-10-19

申请号：US09565654

申请日：2000-05-05

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: G08C1500

CPC classification number: H04W4/00 ,  H04W48/18

Abstract: A method of profiling disparate communications and signal processing standards. The method begins with selection of a set of communications and signal processing standards for analysis. Next, functions performed by the set of communications and signal processing standards are identified and ranked according to computational intensity. A set of high computational intensity functions are then selected for implementation as kernels, the set of kernels forming a programmable processor that enables implementation of any one of the set of communications and signal processing standards.

Abstract translation: 分析不同通信和信号处理标准的方法。 该方法开始于选择一组通信和信号处理标准进行分析。 接下来，根据计算强度来识别和分级由该组通信和信号处理标准执行的功能。 然后选择一组高计算强度函数来实现为内核，该组内核形成可执行通信和信号处理标准中的任何一个的可编程处理器。

公开(公告)号：US06721581B1

公开(公告)日：2004-04-13

申请号：US09565687

申请日：2000-05-05

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: H04M100

CPC classification number: H04B1/0003 ,  H04B1/005 ,  H04B1/406

Abstract: A digital wireless communication device comprises a software-programmable processor, a heterogeneous reconfigurable multiprocessing logic circuit, and a bus connecting the software-programmable processor and the heterogeneous reconfigurable multiprocessing logic circuit. The heterogeneous reconfigurable multiprocessing logic circuit comprises a set of heterogeneous signal processing kernels and a reconfigurable data router interconnecting the heterogeneous signal processing kernels. The software-programmable processor is selected from the group comprising: a digital signal processor and a central processing unit. The architecture provides the ability to reconfigure a single product platform for multiple standards, applications, services, and quality-of service, instead of developing multiple hardware platforms to establish the same collective functionality. The architecture also provides the ability to use software programming techniques to reduce product development time and achieve rapid and comprehensive product customization. The invention extends the performance efficiency of microprocessors and digital signal processors via the augmentation of data paths and control paths through a reconfigurable co-processing machine. The reconfigurability of the data path optimizes the performance of the data flow in the algorithms implemented on the processor.

Abstract translation: 数字无线通信设备包括软件可编程处理器，异构可重新配置的多处理逻辑电路以及连接软件可编程处理器和异构可重构多处理逻辑电路的总线。 异构可重构多处理逻辑电路包括一组异构信号处理内核和互连异构信号处理内核的可重配置数据路由器。 软件可编程处理器从包括数字信号处理器和中央处理单元的组中选择。 该架构提供了为多个标准，应用程序，服务和服务质量重新配置单个产品平台的能力，而不是开发多个硬件平台来建立相同的集体功能。 该架构还提供使用软件编程技术来减少产品开发时间并实现快速和全面的产品定制的能力。 本发明通过可重构协同处理机的数据路径和控制路径的增加来扩展微处理器和数字信号处理器的性能效率。 数据路径的可重构性优化了在处理器上实现的算法中数据流的性能。

公开(公告)号：US5361276A

公开(公告)日：1994-11-01

申请号：US119682

申请日：1993-09-13

Applicant: Ravi Subramanian

Inventor： Ravi Subramanian

IPC: H04L27/22 ,  H04B1/7117 ,  H04B1/712 ,  H04L27/30

CPC classification number: H04B1/712 ,  H04B1/7117

Abstract: A spread spectrum receiver for use in spread spectrum communication systems is disclosed. The spread spectrum receiver of the present invention includes an analog-to-digital converter for receiving an analog spread spectrum signal, and for converting the received analog signal to a digital signal. The spread spectrum receiver also includes a digital frequency offset correction device, for modifying the digital signal in accordance with a frequency correction term signal to thereby correct for frequency offset in the received analog signal. The spread spectrum receiver also contains a Rake receiver. The spread spectrum receiver searches through the modified digital signal to identify M of the main and multipath return signals having the strongest signal strengths. The identified main and multipath return signals are processed in accordance with predetermined maximum likelihood techniques to thereby generate phase correction and maximal-ratio combining weighting factors for each of the M signals, as well as the overall frequency correction term signal.

Abstract translation: 公开了一种用于扩频通信系统中的扩频接收机。 本发明的扩频接收机包括用于接收模拟扩频信号的模数转换器，并将接收的模拟信号转换为数字信号。 扩频接收机还包括数字频偏校正装置，用于根据频率校正项信号修改数字信号，从而校正接收到的模拟信号中的频率偏移。 扩频接收机还包含Rake接收机。 扩频接收机通过修改的数字信号来搜索具有最强信号强度的主路径和多路径返回信号的M。 根据预定的最大似然技术来处理所识别的主路径和多路径返回信号，从而产生M个信号中的每一个以及整个频率校正项信号的相位校正和最大比组合加权因子。