KR20120126860A - mobile communication system switching and searching an optimal WiFi path using a dual WiFi chip and controlling method therefor - Google Patents

Abstract

PURPOSE: A mobile communication system capable of converting optimal Wi-Fi path using a dual Wi-Fi chip and control method thereof are provided to execute successive Wi-Fi communication by selecting the optimal Wi-Fi AP(Access Point) using a checking server. CONSTITUTION: A dual Wi-Fi chip(1) is arranged in the inside of a smart phone(3A,3N). The smart phone scans a Wi-Fi AP including a good signal using the dual Wi-Fi chip. The smart phone searches the optimal Wi-Fi AP by executing the set testing function. A checking server(3) checks the set test category signal and the smart phone using the selected Wi-Fi AP according to the testing category signal of the smart phone. [Reference numerals] (6) Control module; (8) 3G communication network; (9) 3G wireless module

Description

Mobile communication system switching and searching an optimal WiFi path using a dual WiFi chip and controlling method therefor}

 The present invention relates to a mobile communication system and a control method for searching for and switching an optimal Wi-Fi path using a dual Wi-Fi chip, in particular a Wi-Fi chip operating in standby while one chip is active after redundancy of the Wi-Fi chip The mobile communication system and the control that scans the signals of all the Wi-Fi APs in the vicinity and tests them through a checking server, and then finds and switches the optimal Wi-Fi path using a dual Wi-Fi chip that selects and transfers the best available Wi-Fi AP. It is about a method.

In general, in the early 1980s, mobile communication system divided service area into hexagonal cells of several km to several ten kilometers in diameter in North America, and then repeatedly used the same frequency channel in geographically separated cells, In the mobile phone, which implements the radio channel switching function, for example, cellular phone (cellular-phone) has been rapidly growing by commercialization for the first time. However, in recent years, such mobile phones have evolved more and more, and an intelligent mobile phone called a smart phone has been widely used. This smart phone usually means combining a mini computer or a portable computer function with a mobile phone function and a mobile phone function. It is a feature that you can download and install the application you want, that is, the application.

In other words, such a smart phone incorporates a mobile phone function with data communication functions such as calendaring, fax transmission and Internet access, and can read and write long-term e-mails exclusively for PCs. The touch panel liquid crystal can be used for operation and text message (SMS, NMS) transmission, and client software for connecting to an information system in the enterprise can be mounted.

Here, the biggest feature of such a smart phone is that unlike the existing mobile phone using only a given function as a finished product, users can install, add and delete hundreds of various applications (applications).

      Then, referring to FIG. 1, a mobile communication system to which the conventional smart phone is applied, a plurality of applications including an operating system are mounted therein, and through a WiFi communication path through 3G or a single Wi-Fi chip 74. A smart phone 70A-N for executing a mobile phone or a wireless Internet;

      A WiFi AP 71A-N configured to execute WiFi communication by setting a WiFi channel to the corresponding smartphone 70A-N when the smartphone 70A-N is located in the vicinity and requests a connection;

3G communication network 73 for processing the call signal, text message or wireless Internet signals transmitted from the smartphone 70A-N in 3G manner and relaying them to another smartphone 70N or Internet server 72. It is configured by.

      On the other hand, if you look at the operation of the conventional mobile communication system as described above, first if the smart phone 70A to drive a variety of applications mounted on its own phone to perform the necessary tasks to call another smartphone (70N) 3G A normal call is carried out via the communication network 73. By the way, in this process, the smartphone 70A is connected to all the WiFi AP (71A-N) that is set to the connection password or the MAC address authentication and access security is not secured through a single WiFi chip 74 Will automatically search. The smartphone 70A then displays a list of the detected WiFi APs 71A-N on the display. At this time, when the user of the smartphone 70A selects one from the search list of the WiFi AP 71A-N, the smartphone 70A connects to the corresponding WiFi AP 71A through a single WiFi chip 74. If it succeeds after attempting to run the desired wireless Internet through the WiFi AP (71A).

In this case, the Wi-Fi chip 74 of the smart phone 70A may check the signal strength to switch the Wi-Fi communication path to the WiFi AP 71A-N having the better signal strength.

However, the WiFi AP access method of the conventional smartphone as described above uses a single Wi-Fi chip, the single Wi-Fi chip can switch the Wi-Fi channel to a good WiFi AP by checking the signal strength strength Since the transferred WiFi AP has only good signal strength, the access rate to the available Wi-Fi channel is very small, so the WiFi AP is frequently disconnected accordingly, and the signal strength is increased by using one Wi-Fi chip. In the case of finding a good WiFi AP and switching it, it is only possible to know whether the corresponding Wi-Fi channel is an available channel or not.

Therefore, the present invention was invented to solve the above-mentioned problems of the prior art, because the signal strength with the Wi-Fi AP is not simply good, but is actually tested through a checking server and is switched to the optimal usable Wi-Fi AP. The purpose of the present invention is to provide a mobile communication system and a control method for finding and switching an optimal Wi-Fi path by using a dual Wi-Fi chip capable of executing Wi-Fi communication.

Still another object of the present invention is to use a dual Wi-Fi chip that secures a seamless Wi-Fi communication channel between the smartphone and the checking server in advance and performs the Wi-Fi communication in the best state, thereby reducing the rate of switching to the unusable Wi-Fi channel. The present invention provides a mobile communication system and a control method for finding and switching an optimal Wi-Fi path.

The present invention as described above is configured to dual-wifi chip in the inside of the dual-wifi chip to scan the WiFi signal with good signal through the dual Wi-Fi chip and then run the set test function to find the optimal WiFi AP to switch and;

A dual check server configured to check a test item signal set with the smartphone via the WiFi AP selected for the test according to the test item signal transmitted from the smart phone, and then transmit a check result to the corresponding smart phone It provides a mobile communication system that finds and switches the optimal Wi-Fi path using Wi-Fi chips.

      Another feature of the present invention includes a general communication execution process for the smart phone to communicate with other communication terminals via the communication path of 3G or WiFi or to execute the wireless Internet;

If WiFi communication is executed during the general communication execution process, the standby WiFi chip scans the signals of all the WiFi APs scattered around the smartphone while the active chip of the dual WiFi chip is connected to the selected WiFi AP to execute the WiFi communication. Standby WiFi chip driving process;

A WiFi AP selection process of selecting a WiFi AP having the best signal strength among neighboring WiFi APs scanned by the smartphone via the standby active chip after the standby WiFi chip driving process;

An AP testing process for executing a testing function by transmitting a testing item signal to a checking server via the selected WiFi AP via the standby active chip after the WiFi AP selection process;

 An AP testing result receiving process in which the smartphone receives a test result signal for the corresponding WiFi AP from the checking server via the selected WiFi AP through the standby active chip after the AP testing process;

An optimal AP determining process of determining whether the corresponding WiFi AP is the optimal WiFi AP available by referring to the test result signal for the corresponding WiFi AP received from the checking server after the AP testing result is received;

During the determination of the optimal AP, if the currently tested WiFi AP is determined to be the best available WiFi AP, the optimal Wi-Fi path using the dual Wi-Fi chip configured to include an optimal AP switching process for switching the Wi-Fi channel to the corresponding WiFi AP It provides a control method of the mobile communication system to find and switch.

As described above, according to the present invention, the Wi-Fi chip operating as a standby scans all the Wi-Fi AP signals through the checking server after the duplication of the Wi-Fi chip, while one chip is active. By selecting and changing the available Wi-Fi AP, the signal strength with Wi-Fi AP is not only good, but is actually tested by the checking server and switched to the best available Wi-Fi AP. There is an effect that can secure the high quality of the Wi-Fi communication.

  Further, according to the present invention as described above, since the Wi-Fi communication is executed in the best state by securing a seamless Wi-Fi communication channel between the smartphone and the checking server, the rate of switching to the unusable Wi-Fi channel is greatly reduced. Therefore, the ease of use is also significantly improved.

1 is an explanatory diagram illustrating a conventional smartphone transmission system.
2 is an explanatory diagram illustrating a mobile communication system according to the present invention.
3 is a flowchart of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The mobile communication system to which the present invention is applied is equipped with a plurality of applications including an operating system as shown in FIG. 2 to execute a mobile phone or a wireless Internet through a communication path of 3G or WiFi, and a dual WiFi chip (1) therein. ) To configure the redundancy, and then scan the WiFi AP (2A-N) with good signal through the dual WiFi chip (1) of the redundancy, and then execute the set test function to find and transfer the optimal WiFi AP (2A-N). Smartphones 3A-N;

According to the test item signal transmitted from the smart phone (3A-N) via the WiFi AP (2A-N) selected for the test checks the test item signal set with the smart phone (3A-N) and then check the result It is configured to include a checking server 4 for transmitting to the corresponding smartphone (3A-N).

In addition, the dual Wi-Fi chip 1 composed of the redundancy is an active Wi-Fi chip 5 for executing Wi-Fi communication through the currently connected WiFi AP (2A-N) and smart while the active Wi-Fi chip 5 is operating Scans the signals of all the WiFi APs (2A-N) scattered around the phone (3A-N), then selects and connects the WiFi APs (2A-N) with good signal strength, and tests them with the checking server (4). It is composed of a standby WiFi chip (6) for transmitting the item signal and receiving and outputting the test results from the checking server (4).

Here, the test item signal includes an upload speed, a download speed, a loss rate and GPS information of the Wi-Fi.

In addition, in the mobile communication system as described above, when the smart phone 3A-N is located in the vicinity and requests access, the Wi-Fi AP 2A-N performs WiFi communication by setting a WiFi channel to the smart phone 3A-N. N) and a 3G communication network which processes call signals, text messages or wireless Internet signals transmitted from the smartphones 3A-N in a 3G manner and relays them to other smartphones 1N or Internet servers 7. 8) also includes more.

In addition, the smart phone (3A-N) is connected to the 3G communication network 8 in the set communication method and performs a 3G wireless module (9);

While the active Wi-Fi chip 5 of the dual Wi-Fi chip 1 is operating, the standby Wi-Fi chip 6 is controlled to display the signals of all the WiFi APs 2A-N interspersed around the smart phones 3A-N. After scanning, select and connect the WiFi AP (2A-N) having good signal strength among them, and then send the test item signal to the checking server (4), and then execute the checking server (4) and its set test function A control module 10 for controlling the function of finding and transferring the WiFi APs 2A-N, and controlling the functions of the smartphones 3A-N as a whole;

A memory unit 11 for storing various data processed via the 3G wireless module 9 or the dual Wi-Fi chip 1 according to the control signal of the control module 10;

The display panel 12 further includes a display panel 12 that displays a state of driving of an application and a state processed by the smartphones 3A-N according to a function control signal of the control module 10 as a graph, a letter or an icon, and operates as a touch screen. .

Next, the control method of the present invention having the above configuration will be described.

The method of the present invention, as shown in Figure 3 in the initial state (S1) and the smart phone performs a general communication execution process (S2) for communicating with another communication terminal or executing the wireless Internet via the communication path of 3G or WiFi and ;

If the WiFi communication is executed during the general communication execution process (S2), the signals of all the WiFi APs scattered around the smartphone while the standby WiFi chip is connected to the selected WiFi AP to execute the WiFi communication A standby Wi-Fi chip driving process (S3) for scanning;

A WiFi AP selection process (S4) for selecting a WiFi AP having the best signal strength among neighboring WiFi APs scanned by the smartphone via the standby active chip after the standby WiFi chip driving process (S3);

After the WiFi AP selection process (S4) AP testing process for executing the testing function by transmitting a test item signal to the checking server via the selected WiFi AP via the standby active chip (S5);

 An AP testing result receiving step S6 in which the smartphone receives a test result signal for the corresponding WiFi AP from the checking server via the selected WiFi AP via the standby active chip after the AP testing process S5;

After the AP testing result receiving process (S6), referring to the test result signal for the corresponding WiFi AP received from the checking server, the smartphone determines the optimal AP AP that is available WiFi AP (S7) and;

In the optimal AP determination process (S7), if the currently tested WiFi AP is determined to be the best available WiFi AP, it comprises an optimal AP switching process (S8) for switching the WiFi channel to the corresponding WiFi AP.

The optimal AP determining process (S7) further includes the next AP testing step of repeating the loop by returning to the WiFi AP selecting process (S4) when the corresponding WiFi AP that is currently tested is not determined to be an available WiFi AP. do.

In addition, the AP testing process (S5) further includes a detailed result transmission step that the checking server transmits a test result signal including the upload speed, download speed, loss rate and GPS information of the Wi-Fi to the smartphone.

In other words, when the user of the smart phone 3A of the present invention wants to call the other smart phone 3N while driving the desired application while performing his / her desired application while looking at his display panel 12, the 3G communication network 8 To make a normal call. However, in this process, the control module 10 of the smart phone 3A is connected via a dual Wi-Fi chip 1, for example, the connection password is set or the MAC address is authenticated, the connection security is not all around the WiFi Search for APs 2A-N automatically.

 When the WiFi AP 2A is selected in the above process, the control module 10 of the smartphone 3A selects one of the dual WiFi chips 1 to be activated and then operates the corresponding WiFi AP 2A. Communication with other communication terminal (3N) through the communication path or through the Internet server 7 to run the wireless Internet.

At this time, when the active Wi-Fi chip 5, which is one of the dual Wi-Fi chips 1, executes Wi-Fi communication, the standby Wi-Fi chip 6, which is one of the dual Wi-Fi chips 1, of the smartphone 3A Under the control of the control module 10, the signals of all the WiFi APs 2A-N scattered around the smartphone 3A are scanned. After the scanning process as described above, the control module 10 of the smartphone 3A is connected to the WiFi AP 2A-N having the best signal strength strength through the standby WiFi chip 6. 2B). In addition, the control module 10 of the smartphone 3A selects the WiFi AP through the above-described process, and then passes the selected WiFi AP 2B to the checking server 4 through the standby WiFi chip 6. The test function is executed by sending a test item signal. Then, the checking server 4 checks the test item signal set with the corresponding smartphone 3A via the WiFi AP 2B selected for the test, and then uploads speed, download speed, loss rate and GPS information of the Wi-Fi. The included test result signal is transmitted to the corresponding smartphone (3A).

Accordingly, the control module 10 of the smart phone 3A refers to the corresponding WiFi AP 2B by referring to a test result signal including the upload speed, the download speed, the loss rate, and the GPS information of the Wi-Fi transmitted from the checking server 4. ) Is the optimal WiFi AP 2B available.

In this case, the control module 10 of the smart phone 3A determines that the optimal WiFi AP 2B currently tested at the time of determining the optimal AP is the optimal WiFi AP 2B currently available to the corresponding WiFi AP 2B. The channel is switched to form the optimal Wi-Fi communication channel.

On the other hand, if the control module 10 of the smartphone 3A is not determined to be the optimal WiFi AP 2B that is currently tested, the corresponding WiFi AP 2B repeats the above process again while the next optimal WiFi Find and transfer AP.

1: Dual WiFi Chip 2A-N: WiFi AP
3A-N: Smartphone 4: Checking Server
5: active wifi chip 6: standby wifi chip
7: Internet server 8: 3G communication network
9: 3G Wireless Module 10: Control Module
11: memory 12: display panel

Claims (6)

A smartphone configured to dually configure the dual Wi-Fi chip therein, scan the WiFi AP having a good signal through the dual Wi-Fi chip of the redundancy, and then execute a set test function to find an optimal WiFi AP;
A dual check server configured to check a test item signal set with the smartphone via the WiFi AP selected for the test according to the test item signal transmitted from the smart phone, and then transmit a check result to the corresponding smart phone Mobile communication system that finds and switches the optimal Wi-Fi path using Wi-Fi chips. The dual Wi-Fi chip of claim 1, further comprising: an active Wi-Fi chip for executing Wi-Fi communication through a currently connected WiFi AP;
While the active Wi-Fi chip operates, scans the signals of all the WiFi APs scattered around the smartphone, selects and connects the WiFi APs with good signal strength, and then sends a test item signal to the checking server and tests from the checking server. A mobile communication system that finds and switches an optimal Wi-Fi path using a dual Wi-Fi chip, which comprises a standby Wi-Fi chip that receives and outputs the result. The mobile communication system of claim 1, wherein the test item signal includes an upload speed, a download speed, a loss rate, and GPS information of the Wi-Fi. The WiFi device of claim 1, wherein the smart phone controls a standby Wi-Fi chip while the active Wi-Fi chip of the dual Wi-Fi chip operates to scan signals of all the Wi-Fi APs scattered around the smart phone, and among them, the Wi-Fi has a good signal strength. And further comprising a control module for controlling the function of finding and switching the optimal WiFi AP by transmitting the test item signal to the checking server and then executing the checking server and the set test function. Mobile communication system using dual Wi-Fi chip to find and switch the optimal Wi-Fi path. A general communication execution process in which the smartphone performs communication with another communication terminal or executes the wireless Internet through a communication path of 3G or WiFi;
If WiFi communication is executed during the general communication execution process, the standby WiFi chip scans the signals of all the WiFi APs scattered around the smartphone while the active chip of the dual WiFi chip is connected to the selected WiFi AP to execute the WiFi communication. Standby WiFi chip driving process;
A WiFi AP selection process of selecting a WiFi AP having the best signal strength among neighboring WiFi APs scanned by the smartphone via the standby active chip after the standby WiFi chip driving process;
An AP testing process for executing a testing function by transmitting a testing item signal to a checking server via the selected WiFi AP via the standby active chip after the WiFi AP selection process;
An AP testing result receiving process in which the smartphone receives a test result signal for the corresponding WiFi AP from the checking server via the selected WiFi AP through the standby active chip after the AP testing process;
An optimal AP determining process of determining whether the corresponding WiFi AP is the optimal WiFi AP available by referring to the test result signal for the corresponding WiFi AP received from the checking server after the AP testing result is received;
During the determination of the optimal AP, if the currently tested WiFi AP is determined to be the best available WiFi AP, the optimal Wi-Fi path using the dual Wi-Fi chip configured to include an optimal AP switching process for switching the Wi-Fi channel to the corresponding WiFi AP Control method of mobile communication system to find and switch. The method of claim 1, wherein the AP testing process further comprises a detailed result transmitting step of transmitting a test result signal including a upload speed, a download speed, a loss rate, and GPS information of the Wi-Fi to a smartphone. A control method of a mobile communication system that finds and switches an optimal Wi-Fi path using a dual Wi-Fi chip.

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