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    • 5. 发明申请
    • Device and Method for Composing Codes
    • 编写代码的装置和方法
    • US20080059551A1
    • 2008-03-06
    • US10565926
    • 2004-07-13
    • Cornelis Hermanus Van BerkelPatrick Peter Elizabeth MeuwissenRicky Johannes Maria Nas
    • Cornelis Hermanus Van BerkelPatrick Peter Elizabeth MeuwissenRicky Johannes Maria Nas
    • G06F7/38
    • H04J13/105
    • Configurable vector processors can be equipped with code generators, so that they are capable of handling different standards and codes. Furthermore, they can be arranged to provide support for related functions such as cyclic redundancy check (CRC). A configurable vector processor would then be equipped with a plurality of generators which generate basic codes in vector format. However, a disadvantage of such a configurable vector processor is that it cannot provide a composite code which is dependent on such basic codes. This is necessary if the configurable vector processors should be flexible enough to support a variety of CDMA-like standards. The device according to the invention is provided with at least two weighted sum units, which are able to make a selection out of a plurality of incoming basic-code vectors by means of a weighted sum operation, under the control of a configuration word. The elements of this configuration word represent the weighting factors which are used to select or deselect a basic-code vector. The selected basic-code vectors are added together and the result of the weighted sum operation is then output as an intermediate-code vector. Subsequently, the intermediate-code vectors are added together by an add unit and output as a composite-code vector. The ability to make selections out of a plurality of incoming basic-code vectors and to add intermediate-code vectors into a composite-code vector, together with the ability to configure the operations of the functional units of the device by means of configuration words, increases the flexibility of the device significantly. This flexibility is needed to support a variety of transmission standards.
    • 可配置向量处理器可以配备代码生成器,以便它们能够处理不同的标准和代码。 此外,它们可以被布置成为诸如循环冗余校验(CRC)之类的相关功能提供支持。 然后,可配置的向量处理器将配备有以矢量格式生成基本代码的多个生成器。 然而,这种可配置向量处理器的缺点在于它不能提供依赖于这种基本代码的复合代码。 如果可配置矢量处理器应足够灵活以支持各种类似CDMA的标准,则这是必要的。 根据本发明的装置具有至少两个加权和单元,它们能够在配置字的控制下通过加权和运算从多个输入的基本码矢量中进行选择。 该配置字的元素表示用于选择或取消选择基本码矢量的加权因子。 所选择的基本码矢量相加在一起,然后将加权和运算的结果作为中间码矢量输出。 随后,通过加法单元将中间码矢量相加在一起,作为复合码矢量输出。 从多个输入的基本代码向量中进行选择并将中间代码向量添加到复合代码向量中的能力以及通过配置字配置设备的功能单元的操作的能力, 显着增加了设备的灵活性。 需要这种灵活性来支持各种传输标准。