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Baseband modulating method, system and linear modulating device

A linear modulation and baseband modulation technology, applied in multi-carrier systems and other directions, can solve problems such as hardware resource consumption, and achieve the effects of saving costs, reducing quantities, and reducing waste

Active Publication Date: 2009-09-02
HUAWEI TEHCHNOLOGIES CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0004] For higher-order modulation methods, or data transmission that requires more modulation methods, if the existing technology modulation methods are used, the There will be more modulation devices, which will easily cause a large consumption of hardware resources

Method used

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  • Baseband modulating method, system and linear modulating device
  • Baseband modulating method, system and linear modulating device
  • Baseband modulating method, system and linear modulating device

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Embodiment 1

[0029] Such as figure 2 Shown is a flow chart of Embodiment 1 of the baseband modulation method of the present invention, including:

[0030] Step 101. Obtain a modulation parameter of data to be modulated, where the modulation parameter is used to indicate the type of modulation required for the data.

[0031] Step 102, according to the modulation parameters, input the data to be linearly modulated into the linear modulation device for linear modulation, the linear modulation is other modulation except GMSK modulation, and the required linear modulation methods include at least two types.

[0032] Step 103, according to the modulation parameters of the data that needs to be linearly modulated, by searching the first mapping table pre-stored in the linear modulation device, the constellation points corresponding to the data that needs to be linearly modulated are obtained. The first mapping table is used to represent different The corresponding relationship between the inpu...

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Abstract

The invention discloses a baseband modulating method, a system and a linear modulating device. The method comprises the steps: modulating parameters of data which needs to be modulated are obtained; the data which needs linear modulation is input into the linear modulating device which is used for linear modulation according to the modulating parameters; the linear modulating device obtains constellation points which correspond to the input data by searching a first mapping table prestored into the linear modulating device according to the respective modulating parameters of different kinds of channel data; and the linear modulating device carries out molding filtration for the constellation points according to a corresponding linear modulating method to complete the baseband modulation. The modulating method is realized by centralizing various kinds of linear modulations into one linear modulating device so as to reduce the quantity of modulating devices for realizing the modulation, and reduce the waste of hardware resources.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a baseband modulation method, system and linear modulation device. Background technique [0002] In order to make the GSM / EDGE Radio Access Network (GERAN for short) compatible with the 3G network, the existing GERAN uses a variety of digital modulation methods in the data transmission process, and the same modulation method is based on For different applications, different modulating symbol rates need to be designed. Generally, modulating symbol rates include Legacy Symbol Rate (LSR for short) and Higher Symbol Rate (HSR for short). [0003] In the prior art, if multiple modulation modes are required during data transmission, different modulation modes require different modulation modules to implement. Such as figure 1 Shown is the use of Gaussian Minimum Shift Keying (GMSK for short) modulation and Phase-Shift Keying (8PSK for short) modulation in the prior art t...

Claims

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Application Information

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IPC IPC(8): H04L27/34
Inventor 高福均
Owner HUAWEI TEHCHNOLOGIES CO LTD
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