公开(公告)号：US20040230632A1

公开(公告)日：2004-11-18

申请号：US10670062

申请日：2003-09-24

Applicant: InterDigital Technology Corporation

Inventor： Ryan Samuel Buchert ,  Chayil S. Timmerman ,  Stephan Shane Supplee

IPC: G06F007/52

CPC classification number: G06F5/015 ,  G06F17/16

Abstract: A method and system for performing many different types if algorithms utilizes a single mathematical engine such that the mathematical engine is capable of utilizing the same multipliers for all of the algorithms. The mathematical engine includes a selectively controlled parallel output register, at least one selectively controlled memory, and a plurality of processing elements. The output register, the memory and the processing elements are selectively controlled depending upon the algorithm to be performed.

Abstract translation: 用于执行许多不同类型的算法的方法和系统利用单个数学引擎，使得数学引擎能够对所有算法使用相同的乘法器。 数学引擎包括选择性控制的并行输出寄存器，至少一个选择性控制的存储器和多个处理元件。 根据要执行的算法，选择性地控制输出寄存器，存储器和处理元件。

公开(公告)号：US20040174854A1

公开(公告)日：2004-09-09

申请号：US10725808

申请日：2003-12-02

Applicant: InterDigital Technology Corporation

Inventor： Stephan Shane Supplee ,  Chayil S. Timmerman ,  Ryan Samuel Buchert ,  Peter Edward Becker ,  Tonino Nasuti ,  Robert A. DiFazio ,  John W. Haim

IPC: H04B007/216

CPC classification number: H04B1/71052 ,  H04B2201/70707

Abstract: Multi-user detection (MUD) performance is optimized to eliminate redundant use of power during processing. An overbuilt A-matrix, i.e., a system response matrix, is provided. The overbuilt A-matrix uses all possible codes, e.g., all codes identified in a candidate code list (CCL) provided by blind code detection (BCD). The overbuilt A-matrix is passed to the MUD which extracts only those rows or columns required for codes that have actually been received, thus eliminating the need to recompute whitening matched filter (WMF) outputs that do not correspond to the actually received code.

Abstract translation: 优化多用户检测（MUD）性能，以消除处理过程中冗余电源的使用。 提供了一种过度建立的A矩阵，即系统响应矩阵。 过量的A矩阵使用所有可能的代码，例如由盲代码检测（BCD）提供的候选代码表（CCL）中标识的所有代码。 过量的A矩阵被传递给仅提取实际已经接收的代码所需的行或列的MUD，从而不需要重新计算与实际接收的代码不对应的白化匹配滤波器（WMF）输出。

公开(公告)号：US20040001465A1

公开(公告)日：2004-01-01

申请号：US10264192

申请日：2002-10-03

Applicant: InterDigital Technology Corporation

Inventor： Chayil S. Timmerman ,  Ryan Samuel Buchert

IPC: H04B007/216

CPC classification number: H04B1/7105 ,  H04B2201/70707 ,  H04L25/0212

Abstract: A hermetian of a system response matrix is to be determined. Spreading codes, channel specific multipliers and channel impulse responses are provided. The channel code specific multipliers have real and imaginary values. Channel codes being a combination of a real spreading code, a complex scrambling code and a sign of the channel code specific multiplier. Real and imaginary components of an approximate hermetian of the system response matrix are determined. The channel code specific multipliers are applied to the real and imaginary components of a result of the convolutions to derive the hermetian of the system response matrix.

Abstract translation: 要确定系统响应矩阵的传感器。 提供扩展码，信道特定乘法器和信道脉冲响应。 信道码特定乘法器具有实数值和虚数值。 信道码是实数扩展码，复数扰码和信道码特定乘数的符号的组合。 确定系统响应矩阵的近似赫赫米特的实部和虚部。 信道码特定乘法器被应用于卷积结果的实部和虚部，以得出系统响应矩阵的赫赫米特。

公开(公告)号：US20030210754A1

公开(公告)日：2003-11-13

申请号：US10335359

申请日：2002-12-31

Applicant: InterDigital Technology Corporation

Inventor： Ryan Buchert ,  Tonino Nasuti ,  Chayil S. Timmerman

IPC: H04L001/00 ,  H03D001/04 ,  H03D001/06

CPC classification number: H04B1/71075 ,  H04B2201/70701 ,  H04L25/03012 ,  H04L2025/03605 ,  H04L2025/03796

Abstract: Method and apparatus for performing midamble cancellation to remove midamble interference from the convolution tail of data field 1 and the first W-1 chips of the midamble field which results from the delay spread of the multipath channel and for canceling the first W-1 chip midamble spread in the data field 2, which operations are performed substantially simultaneously. The received burst, typically a TDD burst, is stored, the midamble interference and the corresponding parts in the received burst is removed and the resulting burst is applied to a multi-user detector to obtain the symbol sequences.

Abstract translation: 用于执行中间码消除的方法和装置，以从数据场1的卷积尾部和由多径信道的延迟扩展产生的中间码字段的第一W-1码片消除中间码干扰并且用于消除第一W-1码片中间码 在数据字段2中扩展，哪些操作基本上同时执行。 存储所接收的脉冲串（通常是TDD脉冲串），去除接收脉冲串中的中间码干扰和对应的部分，并将得到的脉冲串应用于多用户检测器以获得符号序列。