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Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm

一种逼近器、范数的技术，应用在逼近N维欧几里德范数领域，能够解决计算复杂、复杂、缓慢等问题，达到计算复杂性高、高准确度的效果

Inactive Publication Date: 2006-11-08
NOKIA SOLUTIONS & NETWORKS OY
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although various approximation techniques are known to approximate the two-dimensional Euclidean norm, their application to the higher-dimensional Euclidean norm approximation becomes computationally complex
Since approximation techniques are currently not generally available for fast and accurate approximation of higher-dimensional Euclidean norms, modem devices and other devices designed to operate on data represented in multiple dimensions either provide inaccurate The approximation of the Euclidean norm is either very complex and slow

Method used

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  • Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm
  • Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm
  • Approximator apparatus, and associated method, for approximating an N-dimensional euclidean norm

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Embodiment Construction

[0032] First refer to figure 1 , generally indicated at 10, provides wireless communications between mobile stations, represented by mobile station 12, and portions of the network. In an example embodiment, the communication system forms a cellular communication system operable generally according to instructions for utilizing Code Division Multiple Access (CDMA) communication techniques. The communication system also represents other types of cellular communication systems. More generally, communication system 10 represents any of various other types of digital communication systems in which digital communication stations are interconnected by communication channels. Thus, although the following description of the exemplary operation of the present invention is directed to its implementation in which the communication system constitutes a CDMA-based cellular communication system, the teachings of the present invention are similarly applicable in other types of communication ...

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Abstract

Approximator apparatus, and an associated method, for approximating a Euclidean norm. A transformer transforms component portions of a data symbol into transformed values. And, the transformed values are provided to an estimator. The estimator estimates the Euclidean norm responsive to the transformed values provided thereto. When a higher level Euclidean norm is to be approximated, transforming and estimations are iteratively performed to form successive two dimensional Euclidean norm approximations.

Description

technical field [0001] The present invention generally relates to a way of approximating an N-dimensional Euclidean norm. More specifically, the present invention relates to an approximator device and an associated method for approximating the value of an N-dimensional Euclidean norm of a data symbol defined in N-dimensions. Background technique [0002] When used to approximate the Euclidean norm of a two-dimensional data symbol, a more accurate approximation can be obtained relative to the approximation accuracy allowed by conventional approximation devices. When used for approximating the Euclidean norm of the three-dimensional data symbol, the approximation device greatly reduces the complexity and maintains high accuracy compared with conventional approximation devices. And it can also approximate the Euclidean norm of higher-dimensional data symbols, which does not need to increase the complexity of circuits or processing too much. [0003] This approximator device i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03D1/00H04L27/06H04L27/22H04N
CPCH04L27/22H04L27/06H03D1/00
Inventor 托马斯·J·肯尼
Owner NOKIA SOLUTIONS & NETWORKS OY