KR101521271B1 - Method for measuring data transmission speed in wireless communication terminal and apparatus for measuring data transmission speed - Google Patents

Abstract

The present invention relates to a method and a device for measuring a data transmission rate at a current location based on the number of users of a base station and a CQI in a mobile communication terminal. A method for measuring a data transmission rate based on a radio environment in a mobile communication terminal according to the present invention includes the steps of: receiving from a base station management server the number of concurrent accesses of a base station in communication; Measuring a CQI (Channel Quality Indicator); And calculating a data transmission rate using the received number of concurrent users and the measured CQI.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of measuring a data transmission rate in a mobile communication terminal and a method of measuring the data transmission rate in a mobile communication terminal.

The present invention relates to a method for measuring a data transmission rate at a mobile communication terminal, and more particularly, to a method for measuring a data transmission rate at a current location based on the number of users and CQI of a base station in a mobile communication terminal, .

In the mobile communication data service, the service quality provided to the mobile communication terminal varies depending on the number of users connected and the wireless environment. Mobile operators analyze data collected from the mobile communication network to identify and manage the network load ratio by region. The following patent documents disclose a performance and load inspection system of a mobile communication system.

However, conventional mobile communication providers are not able to provide communication quality for mobile communication terminals provided to end users. That is, the conventional mobile communication system monitors only the load factor of each device or region without considering the wireless environment of the user at all.

Accordingly, the users install the speed measurement application in their mobile communication terminal and directly measure the data transmission speed using this application. However, the conventional method of measuring the data transmission rate using the speed measurement application has a problem that the data usage fee is excessively generated because a considerable test packet is transmitted / received to / from the mobile communication core network for speed measurement.

Korean Patent Publication No. 10-2007-0117397

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve such a conventional problem, and it is an object of the present invention to provide a data transmission method and a data transmission method for calculating and displaying a data transmission rate at a current position, based on a CQI (Channel Quality Indicator) A speed measuring method and a data transmission rate measuring device.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

According to a first aspect of the present invention, there is provided a method for measuring a data transmission rate based on a wireless environment in a mobile communication terminal, the method comprising: receiving from a base station management server a number of simultaneous users of a base station in communication; Measuring a CQI (Channel Quality Indicator); And calculating a data transmission rate using the number of concurrent accesses and the measured CQI.

Preferably, the calculating step calculates a transmission rate inversely proportional to the number of concurrent users and proportional to the CQI, and places a larger weight on the CQI than the number of concurrent users.

According to a second aspect of the present invention, there is provided an apparatus for measuring a data transmission rate, comprising: a connection number acquisition module for acquiring the number of concurrent connections of a base station in communication; A CQI measurement module for measuring a CQI (Channel Quality Indicator); And a rate calculation module for calculating a data transmission rate using the acquired number of concurrent users and the measured CQI.

Preferably, the rate calculation module calculates a transmission rate inversely proportional to the number of concurrent users and proportional to the CQI, and places a larger weight on the CQI than the number of concurrent users.

The present invention has an effect of confirming the actual data capturing speed at the current position to the user by calculating and displaying the data transmission speed based on the number of users connected to the base station and the user's wireless environment.

In addition, the present invention has an advantage of minimizing a data usage fee derived when measuring a data transmission rate by calculating a data transmission rate by transmitting and receiving a minimum packet with a mobile communication core network.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the principles of the invention. And shall not be construed as limited to such matters.
1 is a diagram illustrating a communication system for measuring a data transmission rate of a mobile communication terminal according to an embodiment of the present invention.
2 is a flowchart illustrating a method of calculating a data transmission rate in cooperation with a base station management server in a mobile communication terminal according to an embodiment of the present invention.
3 is a diagram illustrating a screen of a mobile communication terminal displaying a data transmission rate as a graphical symbol according to an embodiment of the present invention.
4 is a diagram illustrating a configuration of a data transmission rate measuring apparatus according to an embodiment of the present invention.
5 is a flowchart illustrating a method of calculating a data transmission rate based on the number of access points and the CQI in a data rate measuring apparatus according to an exemplary embodiment of the present invention.

The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, in which: There will be. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms "part,"" module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

1 is a diagram illustrating a communication system for measuring a data transmission rate of a mobile communication terminal according to an embodiment of the present invention.

1, a communication system according to an embodiment of the present invention includes a mobile communication terminal 100, a mobile communication core network 300, and a base station management server 200. As shown in FIG.

The mobile communication terminal 100 calculates the data transmission rate using the CQI (Channel Quality Indicator) measured at the current location and the number of simultaneous users of the base station received from the base station management server 200. At this time, the mobile communication terminal 100 calculates a data transmission rate using an equation that is inversely proportional to the number of concurrent users of the base station and is proportional to the CQI but has a larger weight for the CQI than the number of concurrent users. The CQI is measured from 0 to 15, and the higher the number of CQI is measured, the stronger the reception strength of the radio signal of the mobile communication terminal 100 is.

The mobile communication terminal 100 acquires the identification information of the currently communicating base station 310 and transmits the identification information of the base station 310 to the base station management server 200 and transmits the identification information to the base station 310 from the base station management server 200 And receives the number of connected subscribers (i.e., the number of concurrent users). Also, the mobile communication terminal 100 outputs a graphical symbol corresponding to the measured data transmission speed range to the screen.

Preferably, the mobile communication terminal 100 is equipped with a rate measurement application for calculating a data transmission rate, and the data transmission rate is calculated by substituting the CQI and the number of concurrent users of the base station into the equation included in the rate measurement application. Also, the mobile communication terminal 100 can receive the weight and the constant applied to the equation from the base station management server 200 and apply it to the mathematical expression.

The mobile communication terminal 100 includes a tablet computer, a WCDMA terminal, a CDMA terminal, an LTE terminal, a Wibro terminal, a smart phone, and the like, and is capable of communicating with the base station management server 200 through the mobile communication core network 300 But is not limited thereto.

The mobile communication core network 300 includes an LTE (Long Term Evolution) core network, a WCDMA core network, a Code Division Multiple Access (CDMA) core network, a Wibro (Wireless Broadband) Mobility management of the mobile communication terminal 100, establishment of a radio link, and control of a transmission rate. In particular, the mobile communication core network 300 includes a base station 310 that performs wireless communication with the mobile communication terminal 100.

The base station 310 is a base station forming a cell of the mobile communication core network 300 and performs initial access, inter-sector handover, and QoS control functions of the mobile communication terminal 100, And transmits the radio signal to the destination. In addition, the base station 310 periodically broadcasts a radio signal including its identification information, thereby guiding the connection of the mobile communication terminal 100.

The base station management server 200 stores the number of concurrent accesses currently connected to each base station 310 for each base station. In particular, the base station management server 200 stores and manages a load rate table in which the number of connected subscribers is stored for each base station identification information, and grasps the number of simultaneous users for each base station based on the information recorded in the load rate table. The base station management server 200 can check the number of subscribers connected to each of the base stations 310 in cooperation with the mobile communication core network 300. For example, the base station management server 200 may operate in cooperation with an HSS (Home Subscriber Server) or HLR (Home Location Register) responsible for location registration of the mobile communication terminal 100 to determine the number of subscribers connected to each base station 310 . In addition, the base station management server 200 stores base station identification information and base station model information mapped thereto, and stores weight values and constants applied to each base station model.

In particular, when the base station management server 200 receives the base station identification information from the mobile communication terminal 100, the base station management server 200 checks the number of simultaneous users connected to the base station 310 having the base station identification information in the load rate table, To the mobile communication terminal (100). Also, the base station management server 200 may check the model of the base station based on the base station identification information, check the weight and the constant applied to the base station model, and transmit the weight and the constant to the mobile communication terminal 100.

2 is a flowchart illustrating a method of calculating a data transmission rate in cooperation with a base station management server in a mobile communication terminal according to an embodiment of the present invention.

Referring to FIG. 2, when the speed measurement application is executed, the mobile communication terminal 100 receives the radio signal of the base station 310 at the current position and obtains the base station identification information included in the radio signal (S201). Then, the mobile communication terminal 100 transmits the acquired base station identification information to the base station management server 200 (S203).

Then, the base station management server 200 confirms the base station to which the base station identification information received from the mobile communication terminal 100 is assigned, and confirms the number of concurrent users connected to the base station 310 from the load rate table in self storage S205). Then, the base station management server 200 confirms the model of the base station 310 based on the base station identification information (S207). Then, the base station management server 200 confirms the connection number weight (b in Equation 1), the CQI weight (c in Equation 1) and the constant (a in Equation 1) applied to the confirmed base station model (S209) . Next, the base station management server 200 transmits the CQI weight, the number of connected users, and a constant applied to the base station to the mobile communication terminal 100 (S211). Preferably, the base station management server 200 transmits to the mobile communication terminal 100 a connection weight and a CQI weight that are inversely proportional to the number of concurrent users and proportional to the size of the CQI, And transmits the CQI weight to the mobile communication terminal 100. Here, the connection number weight (i.e., b in Equation 1) exceeds 0 and has a range of less than 1, and the CQI weight (c in Equation 1) is a real number exceeding '1'. For example, the base station management server 200 can transmit 0.2 to the number of connected users and 1.19 to the CQI weight to the mobile communication terminal 100.

Then, the mobile communication terminal 100 applies the weight and the constant received from the base station management server 200 to Equation 1 below (S213).

That is, the mobile communication terminal 100 receives from the base station management server 200 a constant a, a number-of-visitors weight b, and a CQI weight c, and assigns them to a, b, and c in Equation 1 below.

a: constant

b: Weight of users

c: CQI weight

Next, the mobile communication terminal 100 measures CQI, which is radio environment information at the current location (S215). That is, the mobile communication terminal 100 analyzes the radio signal received from the base station 310 and measures the CQI at the current position.

Next, the mobile communication terminal 100 substitutes the number of concurrent accesses received from the base station management server 200 and the measured CQI into Equation (1) to calculate a data transmission rate at the current location (S217). Then, the mobile communication terminal 100 confirms the graphic symbol corresponding to the calculated data transmission speed range, and displays the graphic symbol on the screen as the data transmission speed (S219).

3 is a diagram illustrating a screen of a mobile communication terminal displaying a data transmission rate as a graphical symbol according to an embodiment of the present invention.

Referring to FIG. 3, the mobile communication terminal 100 may output graphic symbols 31, 32, and 33 classified into three categories according to the calculated data transmission speed. Here, the graphical symbol 31 displayed in FIG. 3 (a) indicates that the data transmission speed is very good, and the graphical symbol 32 displayed in FIG. 3 (b) will be. Also, the graphic symbol 33 displayed in (c) of FIG. 3 indicates that the data transmission speed is poor. For example, if the calculated data transmission rate is 5 Mbps or more, the mobile communication terminal 100 can display the graphic symbol 31 as shown in FIG. 3A. If the calculated data transmission rate is 500 Kbps or more and less than 5 Mbps The graphic symbol 32 shown in FIG. 3 (b) can be displayed. If the calculated data transmission rate is less than 500 Kbps, the graphic symbol 33 shown in FIG. 3 (c) can be displayed on the screen.

In addition, the mobile communication terminal 100 may display the calculated data transmission rate directly on the display unit 420 together with a measurement unit (i.e., bps) instead of a graphic symbol.

On the other hand, when the wireless environment changes at the current location, the mobile communication terminal 100 may reuse the data transmission rate. Specifically, when the base station in communication is changed, the mobile communication terminal 100 acquires the identification information of the base station and transmits it to the base station management server 200. The mobile communication terminal 100 transmits the identification information of the base station to the base station management server 200 And receives constants and weights applied according to the model of the changed base station. Then, the mobile communication terminal 100 applies the received weight and constant to Equation (1), and substitutes the CQI measured at the changed position and the number of concurrent users received from the base station management server 200 into Equation (1) Recalculates the data transmission rate.

Also, the mobile communication terminal 100 may calculate the data transmission rate at the current position by applying the constant and weight information set in advance to Equation (1). That is, the mobile communication terminal 100 does not change the constants (a in Equation 1) and the weights (b and c in Equations 1), but sets the constants a, By applying the weight c to the equation 1, the CQI measured at the current location and the number of concurrent users received from the base station management server 200 is substituted into equation (1) to calculate the data transmission rate at the current location You may.

4 is a diagram illustrating a configuration of a data transmission rate measuring apparatus according to an embodiment of the present invention.

The data transmission rate measuring apparatus may be a mobile communication terminal 100 as shown in FIG. 1, or may be a separate test apparatus for measuring a data transmission rate experienced by a user.

Referring to FIG. 4, the data transmission rate measuring apparatus includes a communication unit 410, a display unit 420, and a speed measurement unit 430.

The communication unit 410 performs communication with the mobile communication core network 300 such as a WCDMA network, a CDMA network, a Wibro network, and an LTE network.

The display unit 420 is a display unit such as a liquid crystal display (LCD), an organic EL display (organic EL display), or the like, and displays various kinds of information processed by the data transmission rate measuring apparatus. Preferably, the display unit 420 is a touch screen, and further performs the function of the input unit.

The rate measuring unit 430 calculates the data transmission rate at the current location based on the number of simultaneous users connected to the base station 310 and the CQI. The speed measuring unit 430 includes a connection number acquisition module 431, a weight application module 432, a CQI measurement module 433, and a speed calculation module 434 in order to calculate a data transmission rate.

The access number acquisition module 431 transmits base station identification information from the base station management server 200 to acquire the number of concurrent accesses of the base station 310 currently in communication from the base station management server 200. At this time, the access number acquisition module 431 acquires the identification information of the currently communicating base station 310 using the communication unit 410, transmits the obtained base station identification information to the base station management server 200, And receives the number of concurrent users of the base station 310 from the base station management server 200.

The weight application module 432 receives constants and weights applied from the base station management server 200 according to the model of the base station 310 currently communicating with the base station management server 200 through the communication unit 410, (2) " (2) " That is, the weight application module 432 receives the constant a, the number-of-connections weight b, and the CQI weight c from the base station management server 200 via the communication unit 410, Quot; a ", " b ", and " c "

Preferably, the weighting module 432 transmits the weighting factor b and the CQI weight c, which are inversely proportional to the number of concurrent users of the base station 310 and proportional to the size of the CQI, to the base station management server 200, And applies it to Equation (2). More preferably, the weight applying module 432 receives from the base station management server 200 a CQI weight c that is larger than the number-of-contacts weight b, and applies the CQI weight c to Equation (2). Here, the connection number weight (i.e., b in Equation 1) is a real number exceeding '0' and less than '1', and the CQI weight (c in Equation 1) is a real number exceeding '1'. For example, the weighting application module 432 may receive 0.2 from the number of connected users and 1.19 from the CQI weighting from the base station management server 200 and apply it to Equation (2).

a: constant

b: Weight of users

c: CQI weight

The CQI measurement module 433 analyzes the radio signal received from the communicating base station 310 and measures the CQI at the current location.

The speed calculation module 434 substitutes the number of concurrent users of the base station 310 and the CQI measured by the CQI measurement module 433 acquired by the number-of-contacts acquiring module 431 into the equation (2) Calculate the speed. At this time, the speed calculation module 434 calculates the data transmission rate by substituting the number of concurrent users and the CQI in Equation (2) to which the constant a and the weight b and c are applied by the weight application module 432 .

Also, the speed calculation module 434 can identify a graphic symbol corresponding to the calculated data transmission speed range, and display the graphic symbol on the display unit 420 as the data transmission speed (see FIG. 3).

5 is a flowchart illustrating a method of calculating a data transmission rate based on the number of access points and the CQI in a data rate measuring apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the access number acquisition module 431 acquires the identification information of the base station 310 currently in communication using the communication unit 410 (S501). Then, the access number acquisition module 431 transmits the obtained base station identification information to the base station management server 200 using the communication unit 410 (S503).

The communication unit 410 receives the number of concurrent users of the base station 310 having the base station identification information from the base station management server 200 and calculates a constant a ) And weight values (b, c) from the base station management server 200 (S505).

Then, the access number acquisition module 431 confirms the number of simultaneous users of the base station 310 received from the base station management server 200, and the weight application module 432 transmits the received constant and the weight Is applied to Equation (2) (S507). That is, the weight application module 432 receives the constant a, the number-of-connections weight b, and the CQI weight c from the base station management server 200 through the communication unit 410, Are substituted into a, b, and c in Equation 2, respectively.

Then, the CQI measurement module 433 analyzes the radio signal received from the base station 310 in communication, and measures the CQI at the current position (S509).

When the CQI measurement and the acquisition of the number of concurrent users are completed by the CQI measurement module 433 and the connection number acquisition module 431, the speed calculation module 434 calculates the number of simultaneous users of the acquired base station 310, A CQI is substituted into Equation 2 to calculate the data transmission rate at the current location (S511).

Next, the speed calculation module 434 confirms the graphic symbol corresponding to the calculated data transmission speed range, and displays the graphic symbol as the data transmission speed on the display unit 420 (S513).

On the other hand, the data transmission rate measuring apparatus may calculate the data transmission rate at the current position by using a predetermined constant and weight information. That is, the device for measuring the data transmission rate can calculate a constant (a), a number-of-contacts weight (b), and a CQI weight (b) without changing the constants (c) is continuously applied to Equation (2), the CQI measured at the current location and the number of simultaneous users of the base station 310 received from the base station management server 200 is substituted into the equation (2) The transmission rate may be calculated.

As described above, according to the present invention, a data transmission rate is calculated and displayed based on the number of users connected to the base station 310 and the user's wireless environment (i.e., CQI) . Also, the present invention maximally reduces the data usage fee derived when measuring the data transmission rate by transmitting and receiving a minimum packet with the mobile communication core network 300 to calculate the data transmission rate.

While the specification contains many features, such features should not be construed as limiting the scope of the invention or the scope of the claims. In addition, the features described in the individual embodiments herein may be combined and implemented in a single embodiment. Conversely, various features described in the singular < Desc / Clms Page number 5 > embodiments herein may be implemented in various embodiments individually or in combination as appropriate.

Although the operations have been described in a particular order in the figures, it should be understood that such operations are performed in a particular order as shown, or that all described operations are performed to obtain a sequence of sequential orders, or a desired result . In certain circumstances, multitasking and parallel processing may be advantageous. It should also be understood that the division of various system components in the above embodiments does not require such distinction in all embodiments. The above-described program components and systems can generally be implemented as a single software product or as a package in multiple software products.

The method of the present invention as described above can be implemented by a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto optical disk, etc.). Such a process can be easily carried out by those skilled in the art and will not be described in detail.

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. The present invention is not limited to the drawings.

100: mobile communication terminal 200: base station management server
300: mobile communication core network 310: base station
410: communication unit 420: display unit
430: Speed measuring unit 431:
432: weight application module 433: CQI measurement module
434: Speed calculation module

Claims (11)

A method for measuring a data transmission rate based on a wireless environment in a mobile communication terminal,
Receiving identification information of a base station in communication, transmitting the acquired base station identification information to a base station management server, and receiving the number of concurrent users of the base station from a base station management server;
Measuring a CQI (Channel Quality Indicator) using a radio signal received from the base station; And
And calculating a data transmission rate using the number of concurrent connected users and the measured CQI,
The calculating step
Wherein the data transmission rate is calculated by applying CQI weights each of which is a real number exceeding 0 and a real number exceeding 1, respectively. delete A method for measuring a data transmission rate based on a wireless environment in a mobile communication terminal,
Receiving from the base station management server the number of concurrent users of the communicating base station;
Measuring a CQI (Channel Quality Indicator); And
And calculating a data transmission rate using the number of concurrent connected users and the measured CQI,
The receiving step receives the constant a, the number-of-contacts weight b, and the CQI weight c, which are applied according to the model of the communicating base station, from the base station management server to the following Equation 3,
Wherein the calculating step calculates the data transmission rate by substituting the received number of concurrent users and the measured CQI into the following equation (3).
(3)

a: constant
b: Weight of users
c: CQI weight 4. The method according to any one of claims 1 to 3,
Wherein the receiving comprises:
Acquiring identification information of the communicating base station, and transmitting the acquired base station identification information to the base station management server to receive the concurrent access point number. 4. The method according to any one of claims 1 to 3,
After the calculating step,
And outputting the calculated data transmission rate to a screen. 6. The method of claim 5,
Wherein the outputting step comprises:
Checking the graphic symbol corresponding to the calculated data transmission rate, and outputting the graphic symbol to the screen as the data transmission rate. Acquiring a number of users to acquire identification information of a base station in communication, transmitting the acquired base station identification information to a base station management server, and acquiring the number of concurrent users of the base station from the base station management server;
A CQI measurement module for measuring a CQI (Channel Quality Indicator) using a radio signal received from the base station; And
And a rate calculation module for calculating a data transmission rate using the acquired number of concurrent users and the measured CQI,
The speed calculation module
And a CQI weight which is a real number exceeding 0 and a real number less than 1, and a CQI weight which is a real number exceeding 1, to calculate the data transmission rate. delete A number of acquiring members for acquiring the number of concurrent users of the base station in communication;
A CQI measurement module for measuring a CQI (Channel Quality Indicator);
A rate calculation module for calculating a data transmission rate using the acquired number of concurrent users and the measured CQI; And
And a weight applying module for receiving from the base station management server a constant a, a number of connected users weight b, and a CQI weight c, which are applied according to the model of the communicating base station, to the following Equation (4)
Wherein the speed calculation module comprises:
And the calculated data transmission rate is calculated by substituting the obtained number of concurrent users and the measured CQI into the following equation (4).
(4)

a: constant
b: Weight of users
c: CQI weight 10. The method according to any one of claims 7 to 9,
Wherein the number-of-
Acquires the identification information of the communicating base station, and transmits the acquired base station identification information to the base station management server to receive the number of concurrent users from the base station management server. 10. The method according to any one of claims 7 to 9,
Wherein the speed calculation module comprises:
A graphic symbol corresponding to the calculated data transmission rate is confirmed, and the graphic symbol is output to the screen.

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