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Method and device for reducing radio signal dynamic range

A dynamic range and signal technology, used in secure communications, multi-frequency code systems, electrical components, etc., can solve the problems of reducing dynamic range, nonlinear distortion of multi-carrier transmission signals, etc.

Inactive Publication Date: 2012-09-05
INTEL MOBILE COMM GMBH
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0015] The disadvantage of the cited techniques is that they also lead to non-linear distortion of the multi-carrier transmission signal, (although it is generally accepted that the dynamic range is also reduced)

Method used

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  • Method and device for reducing radio signal dynamic range
  • Method and device for reducing radio signal dynamic range
  • Method and device for reducing radio signal dynamic range

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Embodiment Construction

[0037] The explanation of the embodiments of the present invention is about the WCDMA downlink signal generated according to the UMTS standard. It must be mentioned that the present invention is not limited to the embodiments described below. For example, it can also be implemented in a system based on the CDMA 2000 standard.

[0038] figure 1 Shown is the modulation diagram for generating a single carrier downlink signal. The modulation diagram is defined in the 3GPP standard TS 25.213 v5.3.0 (2003-03) "Spread Spectrum and Modulation (FDD)".

[0039] The m-modulated, spread-coded, and weighted downlink signal is provided to an adder AD. For example, the m-spread-coded weighted signal can be m users. Each m-spread-coded weighted signal is generated by the series connection of a modulation and spreading coding stage Si and the series connection of multipliers Mi, where i=1, 2, ..., m. for example, figure 1 Shown is the design diagram of the first modulation and spreading coding s...

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Abstract

The invention provides a method and a device for reducing a radio signal dynamic range. In a method for reducing the dynamic range of a multicarrier transmission signal (12 ') which is formed in a transmitter and is composed of two or more carriers, the various signal structure timings of the carriers are determined. A delay unit ( 100; D 0 , D 1 , . . . , DN-1) is then used to set a delay profile between the signal structure timings of various carriers, in such a manner that the signal structures of different carriers or substructures of them are not aligned in time with respect to one another.

Description

Technical field [0001] The present invention relates to a method and device for reducing the dynamic range of a multi-carrier transmission signal. The multi-carrier transmission signal is formed in a transmitter and is composed of two or more carriers. Background technique [0002] Nowadays, it is known that the base station in the mobile wireless system transmits multi-carrier transmission signals in the downlink (that is, the wireless path from the base station to the mobile radio station). The multi-carrier transmission signal includes the signal flow set for different mobile stations. The characteristic of carrier signal transmission is the use of two or more carriers (typically adjacent frequency bands), separated by signal streams between the carriers. Multi-carrier signal transmission is used in the downlink of many mobile wireless systems, for example, GSM (Global System for Mobile Communications). Multi-carrier transmission signals can also be used in the downlink of CD...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26H04K1/00
CPCH04K1/00
Inventor S·马斯里
Owner INTEL MOBILE COMM GMBH
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