KR101079886B1 - The technique supplying method for SDR integration of wireless commuincation - Google Patents

Abstract

The present invention discloses a method for providing SDR integrated wireless communication technology. The method comprises the steps of: establishing a baseband with one of the surrounding available wireless communication technologies; Determining whether the set baseband is initially set; Determining if the baseband is available; Transmitting communication data transmitted and received from an external communication device to a host; Transmitting data for analyzing basic information of the wireless communication technology to the host; Receiving, by the host, the basic information analysis data and analyzing basic information of the wireless communication technology; Determining whether the basic information analysis is completed; And transmitting the communication data to the host by returning to the baseband setting step. Therefore, according to the present invention, in order to use various wireless technologies in the periphery, each transmitting / receiving module is required to prevent the waste of resources, and according to the current environment, that is, the sensitivity and transmission speed of signals by the currently detected wireless technologies. Optimum sensitivity and speed can be provided.

SDR, wireless communication, baseband, host, transmit / receive module

Description

The technique supplying method for SDR integration of wireless commuincation}

The present invention relates to an SDR wireless communication technology, and more particularly, to a method for providing an integrated SDR wireless communication technology using various wireless communication technologies by only upgrading software without changing hardware.

In the current situation where the paradigm is changing from the existing service provider-centered service provision to the differentiated service provided by the service user's demand, there is a limit to the existing system that requires a system change according to various wireless system standards.

In addition, software-defined radio (SDR) technology is a convergence concept of software and hardware technology capable of implementing a reconfigurable system structure of wireless communication, and upgrades software without changing hardware (platform). It is attracting attention as a technology that enables the implementation of a multi-mode, multi-band and multi-function wireless system by itself.

Currently, from the point of view of signal processing, SDR performs the digitization of the received signal as close as possible to the antenna, reducing fixed hardware functions, partially extending the programmable hardware parts, and utilizing the increased software programmability of the system. The trend is to define wireless technology to increase flexibility.

Referring to Korean Patent Registration No. 10-0763600, the reconstruction by the FPGA and software that stores the wireless communication method or mode in the network-specific search result storage unit 304 and loads the FPGA code 112 file on the reconstruction hardware is impossible. It only discloses the S / W control hardware 313 which can change its operation by changing operation parameters, etc., and the SDR USB module is used as a user setting program on the host computer as in the present invention. The search function is not directly disclosed or implied.

Referring to Korean Patent Registration No. 10-0696944, although it supports the implementation of the hybrid concept through software emulation in order to provide various wireless standards in one system, as in the present invention, an internal reconfigurable baseband of an FPGA is connected to any baseband IP. The description of the function depending on whether it is programmed is not directly disclosed or implied.

Referring to US Patent No. 6,937,877 (quotation 3), the wireless technology searched as in the present invention is obtained by obtaining the location information of the SDR terminal and combining the location information and the accessible network information to determine the list of accessible networks in the area. There is no disclosure or implied list listing the priorities that provide the best environment according to their current environment.

An object of the present invention is to use the integrated radio technology module and user setting program using SDR, instead of using each unique radio technology according to a specific radio technology transmission and reception device in order to use many radio technologies existing around us. Therefore, to provide a method for providing a SDR integrated wireless communication technology that can be efficiently used by selecting a variety of wireless communication technologies of all frequency ranges existing in the current environment with a single device.

In accordance with another aspect of the present invention, there is provided a method for providing an SDR integrated wireless communication technology, including: setting a baseband as one wireless communication technology among available wireless communication technologies in the vicinity; Determining whether the set baseband is initially set; Determining whether the baseband is available when the baseband is initially set; Delivering communication data transmitted and received from an external communication device to a host when the baseband is not initially set; Transmitting data for analyzing basic information of the wireless communication technology to the host when the baseband is available; Receiving, by the host, the basic information analysis data and analyzing basic information of the wireless communication technology; Determining whether the basic information analysis is completed; And when the basic information analysis is completed, returning to setting the baseband, estimating that the baseband is an optimal wireless communication technology, and transmitting the communication data to the host.

In the case of initially setting the baseband of the method for providing the SDR integrated wireless communication technology of the present invention for achieving the above object, when a user uses the wireless communication module for the first time, searches for a radio frequency, or uses another wireless communication technology. It is characterized by including a case for.

If the baseband of the method for providing the SDR integrated wireless communication technology of the present invention for achieving the above object is unavailable, it returns to the step of setting the baseband to the other one of the other available wireless communication technologies of the surrounding Selecting a technology to set the baseband, and after the step of determining whether the initial setting is characterized in that the operation is repeated.

Basic information of the wireless communication technology of the SDR integrated wireless communication technology providing method of the present invention for achieving the above object is characterized in that the information on the strength, transmission rate and bandwidth of the signal transmitted and received with the external communication device.

The optimal wireless communication technology of the SDR integrated wireless communication technology providing method of the present invention for achieving the above object is the most suitable wireless communication technology as a result of measuring and determining the basic information of the wireless communication technology in the current situation of the host. It is done.

When the basic information analysis of the SDR integrated wireless communication technology providing method of the present invention for achieving the above object is not completed, the method returns to transmitting the basic information analysis data until the basic information analysis is completed. The basic information analysis data is continuously transmitted to the host.

The step of setting the baseband of the method for providing the SDR integrated wireless communication technology of the present invention for achieving the above object comprises the steps of: searching for available wireless communication technologies in the periphery and posting them in the searched IP list; Selecting a wireless communication technology that the user wants to use from the list of wireless communication technologies posted on the searched IP list; Placing the selected wireless communication technology on an IP list for use; And setting the wireless communication technology published in the IP list to be used as the baseband.

In the step of delivering the communication data of the SDR integrated wireless communication technology providing method of the present invention to the host to achieve the above object is to receive and amplify a communication signal from the external communication device from the antenna and convert it into a digital signal IF signal Demodulating a signal, converting the signal into a baseband signal, and transmitting the signal to the host through a USB port; Receives a digital signal from the host through the USB port and converts it into the baseband signal, modulates it into an RF signal, converts it into an analog signal, amplifies the power, and transmits a transmission signal to the external communication device through the antenna. It characterized in that it comprises a signal transmission step.

The signal receiving step of the SDR integrated wireless communication technology providing method of the present invention for achieving the above object comprises the steps of: receiving and processing the communication signal from the external communication device through the antenna; An RF signal processing step of receiving the communication signal and amplifying the signal strength; An AD conversion step of receiving the amplified communication signal and converting the digital signal into the digital signal; An IF signal processing step of receiving the converted digital signal and demodulating the predetermined digital signal into an IF signal; A baseband processing step of receiving the converted IF signal and converting the signal into a baseband signal; And a USB interface step of receiving the converted baseband signal and transferring the received baseband signal to the host through the USB port.

The signal transmission step of the SDR integrated wireless communication technology providing method of the present invention for achieving the above object is a USB interface step of receiving the digital signal from the host through the USB port; A baseband processing step of receiving the transferred digital signal and converting the received digital signal into a baseband signal; An IF signal processing step of receiving the converted baseband signal, modulating it by a predetermined algorithm, and converting the signal into an IF signal; A DA conversion step of receiving the converted IF signal and converting it into the analog signal; RF signal processing step of applying the converted analog signal to amplify the power to prevent attenuation of the signal or deterioration of noise characteristics; And receiving a power signal having the amplified analog signal and transmitting the same to the external communication device through the antenna.

The method of providing an integrated wireless communication environment according to the present invention prevents resource waste required by each transmitting / receiving module in order to use various wireless technologies existing in the periphery of the present invention. Thus, the most optimal sensitivity and speed can be provided.

Hereinafter, a method for providing SDR integrated wireless communication technology according to the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of an SDR integrated wireless communication module according to the present invention, which includes a deplexer 100, an RF processor 200, an AD and DA converter 300, an IF processor 400, and a baseband processor 500. And a USB interface unit 600. The AD and DA converter 300 includes an ADC 320 and a DAC 320, and the IF processor 400 includes a demodulator 420 and a modulator 440.

Referring to Figure 1 will be described the function of each component of the SDR integrated wireless communication module according to the present invention.

The deplexer 100 transmits a radio signal received from the antenna to the RF processor 200 or a signal transmitted from the RF processor 200 to the antenna.

The RF processor 200 receives and amplifies a communication signal from an external predetermined communication device, amplifies and outputs power by receiving a signal converted into an analog signal in preparation for attenuation of a transmission signal or deterioration of a noise characteristic.

The ADC 320 receives an analog output signal from the RF processor 200 and converts the analog output signal into a digital signal, and the DAC 320 converts the digital output signal from the IF processor 400 into an analog signal.

The IF processor 400 receives the converted digital signal, demodulates it by a predetermined algorithm, converts it into an IF signal, and outputs the result, or receives the output signal of the baseband processor 500 and modulates it by a predetermined algorithm, thereby RF signal. Convert to and print it out.

The baseband processor 500 receives an IF signal and converts the signal into a baseband signal and receives a digital signal from the host and converts the signal into a baseband signal.

The USB interface unit 600 receives the baseband signal and transmits it to a host such as a computer or a wireless terminal connected to the outside of the module, and receives a digital output signal from the host and transmits the digital output signal to the baseband processor 500 inside the module.

2 is a flowchart illustrating an operation of a method for providing an SDR integrated wireless communication technology according to the present invention.

Referring to Figures 1 and 2 will be described the operation of the SDR integrated wireless communication technology providing method according to the present invention.

First, the baseband processing unit 500 configures a digital baseband in Wi-Fi, Wibro, Zigbee, Bluetooth, and the like, which are available wireless communication technologies.

Here, the digital baseband may have already been configured for user use previously or may be configured by default.

It is determined whether the user uses the SDR integrated wireless communication module for the first time or when the digital baseband is initially set to search for radio frequencies or use other wireless communication technologies.

If the SDR integrated wireless communication module initially sets the digital baseband, it is determined whether the digital baseband is available (S300). If not, the communication data transmitted / received from a predetermined external communication device to the host is determined. To transmit (S250).

In step S300, if the digital baseband is available, transmit basic data analysis data of a wireless communication technology to a host (S400), and if the digital baseband is not available, return to step S100 to return the surrounding data. In another available wireless communication technology of the digital baseband configuration (S100).

The host receives the basic information analysis data of the wireless communication technology to analyze the basic information of the wireless communication technology (S500) and determines whether the information analysis is completed (S600).

If the basic information analysis of the wireless communication technology is completed, the method returns to step S100 to configure the digital baseband in the available wireless communication technologies in the vicinity (S100), and again whether or not the initial setting of the digital baseband. (S200)

If the information analysis is not completed, the process returns to step S400 to continue transmitting basic information analysis data of the wireless communication technology to the host until the basic information analysis is completed (S400).

3 is a menu screen on which a user setting program is executed on the host 700 for using the SDR integrated wireless communication module according to the present invention. The searched IP list 720 and the IP list 740 to be used and the setting button 760 are shown. It is composed of

1 and 3, the baseband processor 500 in the SDR integrated wireless communication module according to the present invention describes an operation of setting a digital baseband among available wireless communication technologies in the vicinity.

 First, the SDR integrated wireless communication module searches for available wireless communication technologies in the vicinity, and the searched wireless communication technologies are placed in the searched IP list.

Select a wireless communication technology that the user wants to use from the list of wireless communication technologies listed in the searched IP list and press the setting button.

The selected wireless communication technology is placed on the list of IPs to use.

The baseband processor 500 in the SDR integrated wireless communication module sets the selected radio technology to the digital baseband.

The operation of the SDR integrated wireless communication module according to the present invention will be described with reference to FIGS. 1 to 3 as follows.

First, suppose that a user has a wireless terminal and wants to perform wireless communication using Bluetooth in a specific area.

When the user connects the SDR wireless communication module of the present invention to a USB port, the user can search for wireless communication technologies such as Wi-Fi, Wibro, Zigbee, and Bluetooth that can be used in the specific region. Will be published in the form.

The user selects the Bluetooth that he wants to use from the wireless communication lists posted on the search IP list and presses a setting button.

The wireless terminal converts the Bluetooth command selected by the setting button into a digital electric signal and outputs it through the USB port.

The SDR wireless communication module receives the digital electrical signal of the wireless terminal through the USB interface unit 600 and transmits the digital electrical signal to the baseband processor 500 inside the module.

The baseband processor 500 sets a baseband as a baseband for the selected Bluetooth wireless communication technology (S100).

Since the baseband may be a baseband previously configured for use by a user or a baseband configured by default, the SDR wireless communication module may be used by a user for the first time to use Bluetooth, to search for radio frequency, or to use another wireless communication technology. In order to determine whether or not the digital baseband is initially set.

If the SDR integrated wireless communication module initially sets the digital baseband, it is determined whether the Bluetooth is available (S300). If not, the Bluetooth is the optimal wireless communication technology for the current situation in terms of signal strength and signal bandwidth. It is assumed that the communication data transmitted and received from an external communication device via the Bluetooth to the wireless terminal (S250).

That is, when the deplexer 100 receives a communication signal from an external predetermined communication device from an antenna and transmits the communication signal to the RF processor 200, the RF processor 200 receives and amplifies the communication signal. The ADC 320 receives the amplified analog output signal and converts it into a digital signal.

When the IF processor 400 receives the converted digital signal, demodulates it by a predetermined algorithm, converts the IF signal into an IF signal, and outputs the baseband processor 500 to convert the IF signal into a baseband signal. To the wireless terminal).

In addition, when the baseband processor 500 receives the digital output signal from the wireless terminal through the USB interface unit 600 and converts the baseband signal into the baseband signal, the IF processor 400 outputs the baseband signal. The DAC 320 converts the modulated RF digital output signal into an analog signal by being applied and modulated into an RF signal by a predetermined algorithm.

The RF processor 200 receives the signal converted into an analog signal and amplifies the power to output the transmission signal in preparation for the attenuation of the signal or deterioration of the noise characteristic, and the deplexer 100 applies the transmission signal in which the power is amplified. It receives and transmits it to an external communication device through an antenna.

On the other hand, if the Bluetooth is available in step S300 and transmits the basic data analysis data of Bluetooth to the wireless terminal (S400), and if the Bluetooth is not available, it returns to step (S100) and other available peripherals In the wireless communication technologies, that is, Wi-Fi, Wibro, Zigbee, etc., the digital baseband is configured (S100), and the operation after the step S200 is repeated.

Here, the basic information analysis data refers to data for analyzing information on the signal strength, transmission speed, and bandwidth, which are basic information of the wireless communication technology, with respect to Bluetooth.

When the Bluetooth is available, the wireless terminal receives the basic data analysis data of Bluetooth and analyzes the information about the signal strength, transmission speed, and bandwidth, which are basic information of the wireless communication technology, with respect to Bluetooth (S500).

The wireless terminal determines whether the basic information analysis on the Bluetooth is completed (S600), and if the basic information analysis on the Bluetooth is completed, it returns to step S100 to configure the digital baseband with Bluetooth. (S100)

The SDR wireless communication module re-determines whether or not the digital baseband is initially set up (S200). This time, the user uses the digital baseband for the first time to use Bluetooth, to search for radio frequencies, or to use another wireless communication technology. Since Bluetooth is not an initial setting, it is assumed that Bluetooth is the best wireless communication technology for the current situation in terms of signal strength and signal bandwidth, and transmits communication data transmitted and received from an external predetermined communication device to the wireless terminal through Bluetooth (S250). )

If the basic information analysis on Bluetooth is not completed in step S600, the process returns to step S400 to continue transmitting basic data analysis data of the wireless communication technology to the wireless terminal until the basic information analysis is completed. S400)

As described above, the method for providing SDR integrated wireless communication technology according to the present invention is integrated using SDR instead of using each unique radio technology according to a specific radio technology transmitting and receiving device in order to use many wireless technologies existing around us. Using a wireless technology module and a user setting program, a single device can efficiently select and use various wireless communication technologies in all frequency ranges existing in the current environment.

In addition, the method of providing an integrated wireless communication environment of the present invention prevents resource waste required by each transmitting / receiving module in order to use various wireless technologies existing in the vicinity, and transmits the sensitivity and transmission of signals by the current environment, that is, the currently searched wireless technologies. Depending on the speed, it can provide the most optimal sensitivity and speed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

1 is a block diagram of an SDR integrated wireless communication module according to the present invention.

2 is a flowchart illustrating an operation of a method for providing an SDR integrated wireless communication technology according to the present invention.

3 is a menu screen of executing a user setting program on a host 700 for using the SDR integrated wireless communication module according to the present invention.

Claims (10)

Establishing a baseband with one of the available wireless communication technologies in the vicinity; Determining whether the set baseband is initially set; Determining whether the baseband is available when the baseband is initially set; Delivering communication data transmitted and received from an external communication device to a host when the baseband is not initially set; Transmitting data for analyzing basic information of the wireless communication technology to the host when the baseband is available; Receiving, by the host, the basic information analysis data and analyzing basic information of the wireless communication technology; Determining whether the basic information analysis is completed; And when the basic information analysis is completed, returning to the baseband setting step, estimating that the baseband is an optimal wireless communication technology, and transferring the communication data to the host. How to provide communication technology. The method of claim 1, When the baseband is initially set Method for providing a SDR integrated wireless communication technology, characterized in that when the user uses the wireless communication module for the first time, searching for a radio frequency or for using a different wireless communication technology. The method of claim 1, If the baseband is unavailable And returning to the setting of the baseband, selecting another wireless communication technology from among other available wireless communication technologies, and setting the baseband, and determining whether the set baseband is initially set. SDR integrated wireless communication technology providing method characterized in that performed again. The method of claim 1, Basic information of the wireless communication technology SDR integrated wireless communication technology providing method characterized in that the information on the strength, transmission rate and bandwidth of the signal transmitted and received with the external communication device. The method of claim 4, wherein The optimal wireless communication technology SRT integrated wireless communication technology providing method characterized in that the most suitable wireless communication technology as a result of measuring and determining the basic information of the wireless communication technology in the current situation of the host. The method of claim 1, If the basic information analysis is not completed And returning to the step of transmitting the basic information analysis data, and continuously transmitting the basic information analysis data to the host until the basic information analysis is completed. The method of claim 1, Setting the baseband is Searching for available wireless communication technologies in the vicinity and posting the searched IP list; Selecting one wireless communication technology by a user from a list of wireless communication technologies listed in the searched IP list; Placing the selected wireless communication technology on an IP list for use; And setting the wireless communication technology published in the IP list to be used as the baseband. The method of claim 1, Delivering the communication data to the host A signal receiving step of receiving and amplifying a communication signal from the external communication device from an antenna, converting the signal into a digital signal, demodulating the IF signal, converting the signal into a baseband signal, and transmitting the signal to the host through a USB port; Receives a digital signal from the host through the USB port and converts it into the baseband signal, modulates it into an RF signal, converts it into an analog signal, amplifies the power, and transmits a transmission signal to the external communication device through the antenna. SDR integrated wireless communication technology providing method comprising the step of transmitting a signal. The method of claim 8, The signal receiving step A deflecting step of receiving and processing the communication signal from the external communication device through the antenna; An RF signal processing step of receiving the communication signal and amplifying the strength of the communication signal; An AD conversion step of receiving the amplified communication signal and converting the digital signal into the digital signal; An IF signal processing step of receiving the converted digital signal and demodulating the predetermined digital signal into an IF signal; A baseband processing step of receiving the converted IF signal and converting the signal into a baseband signal; And a USB interface step of receiving the converted baseband signal and delivering the converted baseband signal to the host through the USB port. The method of claim 8, The signal transmission step A USB interface step of receiving and transmitting the digital signal from the host through the USB port; A baseband processing step of receiving the transferred digital signal and converting the received digital signal into a baseband signal; An IF signal processing step of receiving the converted baseband signal, modulating it by a predetermined algorithm, and converting the signal into an IF signal; A DA conversion step of receiving the converted IF signal and converting it into the analog signal; RF signal processing step of applying the converted analog signal to amplify the power to prevent attenuation of the signal or deterioration of noise characteristics; And receiving the power-amplified analog signal and transmitting the power signal to the external communication device through the antenna.

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