KR100562251B1 - Method and System for Monitoring and Notifying RF Parameter in DM of EV-DO System - Google Patents

Abstract

The present invention relates to a method and system for monitoring and reporting RF parameters in a DM of an EV-DO system.

The present invention provides a method for monitoring and notifying RF parameters in the DM of an EV-DO (Evolution-Data Only) system including an access terminal (AT), a diagnostic monitor (DM) and an access network (AN), a) determining an RF parameter to be monitored on the DM and setting a monitoring condition and a notification method of the RF parameter; (b) connecting the DM with the AT to measure the RF parameter determined in step (a); And (c) notifying the state of the RF parameter using the notification method set in step (a) if the measured value of the RF parameter meets the monitoring condition. Provided are a method and system for monitoring and notifying RF parameters in a DM of a system.

According to the present invention, after determining the RF parameter to be monitored, the DM measures the RF parameter, and if there is an abnormality in the radio wave environment in the measurement area, automatically detects it and informs the operator to determine whether there is an abnormality of the radio wave environment in real time. It can be effective.

EVDO, CDMA2000, DM, RF Parameters, Mobile Communications, Monitoring, Notification

Description

Method and System for Monitoring and Notifying RF Parameter in DM of EV-DO System}

1 is an example screen of a graph showing an RF parameter value measured in DM,

2 is an exemplary screen of a graph showing a Best Ec / Io value measured by DM,

3 is a block diagram schematically showing an internal configuration of a DM according to a preferred embodiment of the present invention;

4 is a block diagram illustrating a system for monitoring and notifying RF parameters in a DM of an EV-DO system according to a preferred embodiment of the present invention;

5 is a flowchart illustrating a method of determining an RF parameter to be monitored by a DM and setting a monitoring condition and a notification method of the RF parameter according to a preferred embodiment of the present invention;

6 is a table summarizing an example of a result of inputting a monitoring condition and a notification method by determining an RF parameter to be monitored by a DM according to a preferred embodiment of the present invention;

7 is a flowchart illustrating a method for monitoring and notifying RF parameters in a DM of an EV-DO system according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

300: DM 302: input unit

304: display unit 306: control unit

308: Speaker 310: Memory

312: connection part 400: AT

405: AN 406: BTS

407: BSC 408: ANTS

409: ANC 410: MSC

415: PSTN 420: PDSN

425: HA 430: Router

435: AAA 440: Internet

445: AN-AAA 450: DLR

The present invention relates to a method and system for monitoring and notifying RF parameters in a DM (Diagnostic Monitor) of an EV-DO (Evolution-Data Only) system. More specifically, after determining the RF parameter to be monitored, setting the monitoring condition of the RF parameter, and setting up a notification method for notifying when the measured value of the RF parameter meets the monitoring condition, the DM is connected to an access terminal (AT). By measuring the RF parameter and if the measured value of the RF parameter meets the monitoring conditions, the present invention relates to a method and system for monitoring and notifying the RF parameter in the DM of the EV-DO system by notifying the status of the RF parameter by the selected notification method.

As computer, electronic, and communication technologies have made rapid progress, various wireless communication services using wireless networks have been provided. The most basic wireless communication service is a wireless voice call service that provides a voice call to a mobile terminal user wirelessly, which can provide a service regardless of time and place. In addition, while providing a text message service to complement the voice call service, a wireless Internet service has recently emerged to provide an Internet communication service to a user of a mobile communication terminal through a wireless communication network.

Accordingly, mobile communication service subscribers can receive various types of information such as news, weather, sports, stocks, exchange rates, and traffic information in various forms such as text, voice, still image, and video through wireless Internet service.

As a result of the development of mobile communication technology, the service provided by the mobile communication system is developing not only a voice service but also a multimedia communication service for transmitting circuit data, packet data, and the like.

In order to provide such a service, a mobile communication system has been developed through a first generation analog AMPS (Advanced Mobile Phone System) method and a second generation cellular (PCS) / personal communication service (PCS) method. The IMT-2000 (International Mobile Telecommunication 2000), which is a third generation mobile communication system established by ITU-R as a standard, is commercially available. IMT-2000 is a mobile communication system that aims at high-speed multimedia services such as global direct roaming including personal mobility and service mobility, realizing various application services by combining call quality and wired / wireless network with the same level of wired telephone. .

IMT-2000 is a Code Division Multiple Access (CDMA) 2000 1X, CDMA 2000 1X Evolution-Data Only (EV-DO), Wideband CDMA (WCDMA), and other data rates that can be supported in existing IS-95A and IS-95B networks. It can provide wireless Internet at much faster transmission speed than 14.4 Kbps or 56 Kbps. It can improve the quality of existing voice and WAP (Wireless Application Protocol) service as well as various multimedia services (AOD, VOD, etc.) Can provide.

Here, CDMA 2000 1X (hereinafter, referred to as '1X') is a mobile communication system synchronously implemented among IMT-2000 systems. WCDMA, which is implemented asynchronously, uses a CDMA method for wireless access technology but GSM for mobile communication technology. While based on the network technology of the Global System for Mobile Communications, 1X is based on the CDMA methodology of wireless access technology and mobile network technology. Accordingly, since 1X has backward compatibility with the existing second generation IS-95 network, it is possible to provide a mobile communication service using both second and third generation communication networks. In addition, 1X uses a DCN (Data Core Network) for packet data transmission in addition to voice communication network in the form of a mixture of circuit network and packet network, and provides a unidirectional high speed data service having a transmission rate of up to 307.2 Kbps.

CDMA 2000 1X EV-DO (hereinafter referred to as EV-DO) is a synchronous IMT-2000 system established by international standards by 3GPP2 (3GPP2), an international standardization organization for high-speed packet data transmission. It is a standard. EV-DO is based on Qualcom's High Data Rate (HDR), and it is a method that evolves from 1X. EV-DO has a frequency bandwidth of 1.25 MHz, provides bidirectional high-speed data service with forward speed up to 2.4 Mbps and reverse speed up to 153.6 Kbps, enabling the transmission of large data packets that were limited at 1X. Do. Therefore, as a mobile communication service using a large data packet transmission, it is possible to provide a service such as a video call, high-speed wireless Internet, and the like.

On the other hand, DM is a device for collecting and analyzing radio wave environment data such as call quality between the mobile communication terminal and the base station, whether there is an abnormality in the mobile communication network, so that mobile communication services provided by the EV-DO method can maintain a stable quality Is a device for optimizing and obtaining data for troubleshooting.

In order to collect the radio wave environment data in a specific area by using a DM, a field test is conducted. For this purpose, after connecting the DM with a mobile communication terminal, the radio environment of a specific area is observed while moving to a specific area by car. Done. The DM stores the measurement result in the measurement log, and may analyze the measurement log to determine whether there is an abnormality in the propagation environment.

In this case, when one driver performs the field test, it is difficult to find the abnormality of the radio wave environment by continuously observing the DM while driving. Therefore, the measurement log of the DM is analyzed after the field test. There is a problem that is difficult to analyze. In addition, even in the case of field tests in which two people work in groups and one person observes the DM, when the observer's concentration and attention decrease after a long time, the presence or absence of the radio wave environment at a specific point is observed. There is a problem in that the propagation environment cannot be accurately analyzed in real time because there is a case where it is impossible to pass.

Conventional DM only shows the radio environment in the area where the DM is currently located, and because there is no function to automatically detect and inform the operator when there is an error in the radio environment, the above-mentioned problem occurs, there is an error in the radio environment If so, a method that can detect and notify in real time is required.

In order to solve this problem, the present invention determines the RF parameters to be monitored by the DM of the EV-DO system, sets the monitoring conditions, and sets up a notification method for notifying when the monitoring conditions are met, and then the RF parameters measured by the DM. If the measured value satisfies the set monitoring conditions, RF parameters are used in the DM of the EV-DO system, which informs the operator of the radio wave environment at the measurement point by the set notification method and can determine whether there is an abnormality in the radio wave environment in real time It is an object of the present invention to provide a method and system for monitoring and notifying a user.

According to a first object of the present invention, an RF parameter is monitored and notified in the DM of an Evolution-Data Only (EV-DO) system including an access terminal (AT), a diagnostic monitor (DM), and an access network (AN). A method comprising: (a) determining on a DM an RF parameter to be monitored and setting a monitoring condition and a notification method of the RF parameter; (b) connecting the DM with the AT to measure the RF parameter determined in step (a); And (c) notifying the state of the RF parameter using the notification method set in step (a) if the measured value of the RF parameter meets the monitoring condition. It provides a way to monitor and notify RF parameters in the DM of a system.

According to a second object of the present invention, in a system for monitoring and notifying RF parameters in an EV-DO type mobile communication network, the RF parameters to be monitored are determined to set monitoring conditions for the RF parameters, and the RF parameters are measured. Set a notification method for notifying when the value meets the monitoring condition, and analyzes the radio signal transmitted and received between the AT and AN connected to the AT, and measures the RF parameter to determine the notification method if the monitoring condition is met. A DM for notifying a status of the RF parameter by using; An AT connected with the DM to transmit and receive the AN and the radio signal and to analyze the radio signal at the DM to measure the RF parameter; And an AN for transmitting and receiving the AT and the radio signal, and a system for monitoring and notifying RF parameters in a DM of an EV-DO system.

According to a third object of the present invention, there is provided a computer-readable recording medium recording an application implementing a method of monitoring and notifying RF parameters in an DM of an EV-DO system including AT, DM, and AN. Determine a desired RF parameter, set a monitoring condition for the RF parameter, and set a notification method for notifying when the measured value of the RF parameter meets the monitoring condition, and then in the DM connected to the AT, the RF parameter When the measurement value is measured to determine whether the measured value meets the monitoring condition, and if the monitoring condition is provided, a computer-readable recording medium recording an application for notifying the status of the RF parameter using the notification method is provided.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 and 2 are exemplary screens showing graphs of RF parameter values measured by DM.

The RF parameter is a factor to know the propagation environment of the measurement area. When using the DM, the RF parameter may be measured by analyzing a radio signal transmitted and received between the mobile communication terminal and the base station. Here, the radio wave environment refers to a radio communication environment of a corresponding area determined in consideration of the strength of a wireless signal transmitted and received between a mobile communication terminal and a base station, noise intensity, transmission error rate when transmitting and receiving wireless Internet data, and the like. The better, the higher quality wireless communication services can be provided in the area.

RF parameters used to determine the abnormality of the radio wave environment in the measurement area include RX Power, TX Power, Best ASP Active Serving Pilot Signal to Noise Ratio (DRNR), Data Rate Control (DRC), Packet Error Rate (PER), Best Ec / Io, FTP (File Transfer Protocol) Throughput, Point to Point Protocol (PPP) Throughput, Link Imbalance, User Size, Reverse Activity Bit (RAB).

Here, RX Power refers to power when the mobile communication terminal receives signals of all channels transmitted from the base station, and TX Power refers to power when transmitting a radio signal from the mobile communication terminal to the base station. Best ASP SINR is the signal-to-noise ratio of the base station, which is calculated as the ratio of signal power and thermal noise signal power of the other base station to the signal power of the base station with the largest signal power, and the DRC is the forward data rate requested by the terminal. Say). PER is the packet error rate, which is calculated as the ratio of the number of packets not correctly transmitted to the total number of transmitted packets.Best Ec / Io is the pilot of the base station and other base stations with respect to the power of the pilot channel of the base station with the highest signal power. The pilot channel signal-to-noise ratio, which is calculated as the ratio of noise power due to interference and thermal noise through the channel.

FTP throughput refers to data throughput in the FTP application layer when measuring FTP data, and PPP throughput refers to data throughput in the PPP layer when measuring FTP data. Link Imbalance informs the occurrence of a mismatch between the best forward link base station and the best reverse link base station. The user size provides data service from the base station to which the terminal is connected. The number of users who are receiving. The RAB is information transmitted from the mobile communication system to the terminal when the load of the reverse call link is greater than the load specified by the system operator. When the terminal receives the RAB, the RAB lowers the reverse data rate.

The example screen of FIG. 1 graphically shows the results of measuring TX and RX Power, Best ASP SINR, DRC, PER, FTP Throughput, PPP Throughput, Link Imbalance, User Size, and RAB, and the example screen of FIG. The result of measuring Ec / Io is shown graphically.

The operator can determine the abnormality of the radio wave environment in the measurement area by analyzing the measurement values of the above-described RF parameters, DM of the present invention to be described later to determine the RF parameters to monitor and set the monitoring conditions to meet the operator By notifying the measured value of the RF parameter and the state of the RF parameter, the operator is informed whether the radio wave environment is abnormal.

On the other hand, since the above-described RF parameters are only examples, new RF parameters may be set according to the needs of the operator and used to determine whether there is an abnormality in the radio wave environment.

3 is a block diagram schematically showing an internal configuration of a DM according to a preferred embodiment of the present invention.

As shown in FIG. 3, the DM 300 according to a preferred embodiment of the present invention has an input component 302, a display 304, a controller 306, a speaker 308, and a memory 310 as internal components. And a connection part 312.

The input unit 302 determines an RF parameter and sets a monitoring condition and a notification method. To this end, the input unit 302 may be configured as a keypad to determine RF parameters to be monitored on a screen displayed on the display 304, and to set monitoring conditions and a notification method.

The display unit 304 displays the measured value of the RF parameter when the RF parameter is measured by the DM 300, and the status of the RF parameter when the measured value of the RF parameter satisfies a monitoring condition when a text or an image is selected as the notification method. The operator is notified by displaying the text or image. The display unit 304 may include any one of a super twisted nematic liquid crystal display (STN LCD), a thin film transistor liquid crystal display (TFT LCD), a plasma display panel (PDP), and an organic electroluminescence display (ELD). .

The control unit 306 analyzes the radio signal received from the connection unit 312 to measure the RF parameter, and if the measured value of the RF parameter meets the monitoring condition received from the input unit 302, the display unit 304 Or to the operator through the speaker 308, and controls to store the measured value of the RF parameter and the state information of the RF parameter in the memory 310. To this end, the control unit 306 may be configured as a microprocessor performing a function of a central processing unit (CPU).

When the voice 308 is selected as the notification method, the speaker 308 notifies the operator of the state of the RF parameter by voice if the measured value of the RF parameter meets the monitoring condition.

The memory 310 stores the measured value of the RF parameter, and if the measured value of the RF parameter meets the monitoring condition, it stores the state information of the RF parameter. The memory 310 may be configured as one of a random access memory (RAM), a flash memory, and a hard disk.

The connection unit 312 is connected to the mobile communication terminal to receive and transmit a radio signal transmitted and received between the mobile communication terminal and the base station to the control unit 306.

Here, the DM 300 may be connected to the mobile communication terminal by wire or wirelessly. When the wire is connected by wire, the connection unit 312 may include a serial port, a parallel port, a USB port, and the like. The connection unit 312 may include a wireless LAN module, a Bluetooth chip, and the like.

Looking at the operation of the internal components of the DM 300 as an example, the input unit 302 determines the Best ASP SINR as an RF parameter, and sets the case where the Best ASP SINR is less than -5 dBm as a monitoring condition, the notification about this If the operator is set to notify the operator that the Best ASP SINR is low by using a text and voice method, the control unit 306 analyzes the radio signal received by the connection unit 312 and the value of the best ASP SINR is-. If it is less than 5 dBm, the display 304 outputs a message indicating that the best ASP SINR is low on the screen, and the speaker 308 outputs a message that the best ASP SINR is low on the screen. Thus, the operator can see that the Best ASP SINR is low in the measurement area.

4 is a block diagram illustrating a system for monitoring and notifying RF parameters in a DM of an EV-DO system according to a preferred embodiment of the present invention.

As shown in FIG. 4, a system for monitoring and notifying RF parameters in a DM of an EV-DO system according to an exemplary embodiment of the present invention is a DM 300, an access terminal (AT). 400, an access network (AN: `` AN '') 405, a mobile switching center (MSC: Mobile Switching Center, hereinafter referred to as "MSC") 410, a general switched telephone network ( PSTN: Public Switched Telephone Network (hereinafter referred to as PSTN) 415, Packet Data Serving Node (PDSN) (hereinafter referred to as PDSN) 420, Home Agent (HA) 425, router 430, authentication server (AAA: Authentication Authorization Accounting, hereinafter referred to as 'AAA') 435, Internet 440, access network authentication server (AN-AAA: Access) Network-Authorization Authentication Accounting, hereinafter referred to as 'AN-AAA') 445, and a Data Location Register (DLR) 450.

Meanwhile, the EV-DO system may be used as a mobile communication system for packet data transmission or with a conventional 1X system. In this case, in one AN 405, the EV-DO system and the 1X system are mixed and configured in hardware, and operations are performed separately. Accordingly, when data is transmitted to the AT 400, the data is transmitted through the 1x EV-DO system, and when the voice is transmitted, the data is transmitted through the 1x system.

DM 300 according to a preferred embodiment of the present invention determines an RF parameter to be monitored, sets a monitoring condition and sets a notification method for notifying when the monitoring condition is met, and is connected to the AT 400 is connected to the AT (400) ) And analyzes the radio signals transmitted and received between AN and 405, and measures the RF parameters to inform the operator of the status of the RF parameters using the set notification method.

AT 400 according to a preferred embodiment of the present invention as a terminal for the EV-DO data service transmits and receives a radio signal with the AN (405), DM (300) to analyze the radio signal to measure the RF (DM) 300).

As described above, when the EV-DO system and the existing 1X system are used interchangeably, the AT 400 may designate the EV-DO system and the 1X system as a hybrid access terminal (HAT). All can be supported. Therefore, the AT 400 is provided with voice service through the 1X system, and has a hardware-separated configuration so that high-speed data service can be provided through the EV-DO system. To this end, the AT 400 may be equipped with a Mobile Station Modem (MSM) 5500 chip supporting both the 1X method and the EV-DO method manufactured by Qualcomm.

When the AT 400 receives data through the EV-DO system, since the amount of received data is very large, the AT 400 considers this point in the case of the forward transmission in which the AT 400 transmits data from the AN 405 to the AT 400. In the case of uplink transmission in which the channels divided by the CDMA scheme are transmitted through time slots divided into TDM (Time Division Multiplexing) and transmitted from the AT 400 to the AN 405, To accommodate users, the existing CDMA method is used as it is.

Here, the AT 400 may include various wired / wireless communication terminals such as a personal digital assistant (PDA), a hand-held PC, a CDMA phone, and a mobile broadband system (MBS) phone. Here, the MBS phone refers to a mobile communication terminal to be used in the fourth generation system currently being discussed.

AN 405 according to a preferred embodiment of the present invention transmits and receives a radio signal to and from the AT 400, ANTS (Access Network Transceiver Subsystem) 408 which is a base station transmitter of the EV-DO method that accommodates the radio access standard of the 3GPP2 standard ) And an access network controller (ANC) 409 that is an EV-DO base station controller.

As described above, when the EV-DO system and the existing 1X system are used interchangeably, the AN 405 is a channel card that is in charge of the EV-DO system to support both the EV-DO method and the 1X method. And a channel card and a channel board in charge of the channel board and the 1X system. Accordingly, the AN 405 may include the base transceiver station (BTS) 406 and the base station controller (BSC) 407 of the 1X system as well as the ANTS 408 and the ANC 409 described above.

The BTS 406 performs wired / wireless conversion, a wireless signal transmission and reception function between the AT 400 and the BSC 407, and is a network endpoint device directly connected to the AT 400. The BSC 407 controls the BTS 406 and performs various functions required for radio call processing, such as allocating and releasing radio channels and handing off. That is, when the AT 400 operates in the 1X scheme, the AT 400 transmits a voice signal transmitted from the BTS 406 to the MSC 410 and delivers a packet data signal transmitted from the BTS 406 to the PDSN 420. .

The ANTS 408 transmits and receives only packet data between the AT 400 and the ANC 409 in an EV-DO scheme. The ANC 409 controls the ANTS 408, performs various functions required for EV-DO wireless call processing, and transmits a packet data signal transmitted from the ANTS 408 to the PDSN 420. The ANC 409 is also connected to the AN-AAA 445 and the DLR 450.

The MSC 410 according to the preferred embodiment of the present invention receives voice data from an external circuit data network and transmits the voice data to the AN 405. The MSC 410 includes a plurality of electronic exchanges, and processes basic and additional services, handles incoming and outgoing calls of subscribers, checks whether a subscriber is a valid subscriber, processes location registration and handoff procedures, interworking with other networks, and the like. Do this.

To this end, the MSC 410 includes an Access Switching Subsystem (ASS) that performs distributed call processing, an Interconnection Network Subsystem (INS) that performs centralized call processing, and central control for centralization of operation and maintenance. Subsystem), and a Subsystem such as a Location Registration Subsystem (LRS) that performs a function of storing and managing information about a mobile subscriber.

The PSTN 415 according to the preferred embodiment of the present invention is an example of an external circuit data network connected to the MSC 410 as a wired public switching network that connects to the MSC 410 and transmits voice data. The PSTN 415 is a network configured to connect a telephone line to a telephone exchange facility and make a call between the AT 400 and a landline phone or landlines.

The PDSN 420 according to an exemplary embodiment of the present invention receives packet data from an external packet data service server such as the Internet 440, transmits the packet data to the AN 405, and manages location information data of the AT 400. In addition, the PDSN 420 manages a session for packet data service, performs a routing process of packet data, and provides an interface for connecting the EV-DO network and the Internet 440 network.

The HA 425 according to a preferred embodiment of the present invention performs routing to track and connect to a location of an external packet data network such as the Internet 440 network, and the router 430 merely connects to the Internet 440. To be used. AAA (435) is a function that authenticates by checking the state of the bandwidth, service, etc. of the AT (400), the function of encrypting the data using an encryption key (transmitting and receiving data through the Internet 440), encryption level A level management function and a data collection function for billing and settlement of the AT 400 are performed.

The AN-AAA 445 according to the preferred embodiment of the present invention performs a function of authenticating the AT 400 to use the data service through the AN 405 and authorizing the service. Accordingly, the AN-AAA 445 stores service identification information such as a mobile identification number (MIN), an electrical serial number (ESN) of the AT 400, and service request, termination, origination / discontinuation, and the like.

Here, the AN-AAA 445 authenticates the AT 400 accessing the AN 405 using a standardized Challenge Handshake Authentication Protocol (CHAP). Here, the challenge handshake protocol is one of the PPP authentication protocols used for dial-up IP (Internet Protocol) access, and a technology for authenticating the AT 400 by encrypting and transmitting a password among a user ID and a password. Say

The DLR 450 according to the preferred embodiment of the present invention allocates a unicast access terminal identifier (UATI) to the AT 400 and manages location information of the AT 400. Here, UATI is an access terminal identifier for identifying the AT 400 on the radio standardized by 3GPP2 and is newly generated every time the DLR 450 moves. That is, over the air, UATI is used as an access terminal identifier, and MIN or IMSI (International Mobile Station Identity) is used as an access terminal identifier in a wired network. IMSI is a number that includes a country code (MCC), a country code (MNC) and a MIN.

Once the AT 400 is authenticated by the AN-AAA 445 and the UATI is assigned by the DLR 450, the data with the Internet 440 via the PDSN 420 in the same manner as the data communication in the 1X system. The service is done.

5 is a flowchart illustrating a method of determining an RF parameter to be monitored by a DM and setting a monitoring condition and a notification method of the RF parameter according to a preferred embodiment of the present invention.

As shown in FIG. 5, when the initial screen is displayed by applying power to the DM 300, the DM 300 may provide a menu for setting a condition for monitoring RF parameters (S500). In the above menu, a list of RF parameters that can be monitored by the DM 300 is shown, and an RF parameter to be monitored can be selected from the list (S502). Here, selectable RF parameters include RX Power, TX Power, Best ASP SINR, DRC, PER, Best Ec / Io, FTP Throughput, PPP Throughput, Link Imbalance, User Size, RAB, etc. A new RF parameter may be defined and added to the list of RF parameters measured by the DM 300.

When the DM 300 determines the RF parameter to be monitored, a monitoring condition for the determined RF parameter is set, and a notification method for notifying when the measured value of the RF parameter meets the monitoring condition is set (S504). The monitoring conditions for the RF parameters can be set by specifying the range of the measured values. For this purpose, an upper limit and / or a lower limit of the RF parameter measurement value can be set so that the monitoring condition can be set when the measurement value is above the specified value and / or below the specified value.

After setting the monitoring condition, a notification method is set up to notify the user when the measured value of the RF parameter meets the monitoring condition. The notification method may include a notification method using a text message, a notification method using a voice, a notification method using an image, and the like. The RF parameter may be measured to an operator by using one or more of the above-described notification methods. It can be notified that the value meets the set monitoring conditions.

After setting the notification method, the status of the RF parameter to be notified to the operator is set using the set notification method. For example, if the RX Power is determined as an RF parameter to monitor among the RF parameters, the monitoring condition is set when the measured value of RX Power is smaller than the specified value as the monitoring condition and the notification method is set. If the condition is satisfied, the operator can be notified by the notification method set by inputting the message 'Low RX Power' as the state of the RF parameter to inform the operator that the RX Power value is low.

The notification method using a text notifies the status of the RF parameter in a text message on the screen of the display unit 304 of the DM 300, and the notification method using a voice uses an RF using the speaker 308 of the DM 300. Notification of the status of the parameter, the notification method using an image may notify the status of the RF parameter by displaying an icon (Icon) indicating the status of the RF parameter on the screen of the display unit 304 of the DM (300). .

Meanwhile, in step S502, the DM may determine a plurality of RF parameters to be monitored, set a monitoring condition for each RF parameter, and set a notification method and a state of an RF parameter to be notified.

After the above-described determination of the RF parameter, the setting of the monitoring condition and the notification method, it is asked whether to select another RF parameter from the menu for setting the condition for monitoring the RF parameter (S506). If no other RF parameter is selected, the condition setting for the RF parameter to be monitored is finished, and if another RF parameter is selected, the monitoring condition and notification method are set again.

6 is a table summarizing an example of a result of inputting a monitoring condition and a notification method by determining an RF parameter to be monitored by a DM according to an exemplary embodiment of the present invention.

Referring to the conditions set in FIG. 6, RX Power and Best ASP SINR were determined as RF parameters to be monitored, and RX Power was set as a detection condition when the monitoring condition was smaller than -90 dBm without specifying a lower limit value. Best ASP SINR was set as the sensing condition when less than -5 dB. The notification method was set in both RX Power and Best ASP SINR by text, voice, and video. In case of RX Power, the status of RF parameter is indicated by 'Low RX Power' as text, 'RX Power low' as voice, 'Down arrow' as video, and in case of Best ASP SINR The status of the RF parameters is indicated by 'Bad SINR' for voice, 'Best SINR low' for voice, and 'shaped hand pointing to the right' with video.

Accordingly, if the condition for monitoring the RF parameter is set under the above-described conditions, and the RX Power value measured by the DM 300 is less than -90 dBm or the Best ASP SINR value is less than -5 dB, the above notification method is used. The operator is informed of the status of the RF parameter.

7 is a flowchart illustrating a method for monitoring and notifying RF parameters in a DM of an EV-DO system according to a preferred embodiment of the present invention.

As shown in FIG. 7, after setting the condition for monitoring the RF parameter, the DM 300 is connected to the AT 400 through the connection unit 312 to receive a radio signal (S700). The DM 300 analyzes the radio signal to measure the RF parameter specified in the measurement area (S702). Here, the DM 300 may measure the RF parameter for each measurement area by distinguishing the measurement area, and measure the RF parameter for each base station by distinguishing the measurement area based on the coverage of the base station.

When the RF parameter is measured in the measurement area, it is checked whether the measured RF parameter value meets the set monitoring condition (S704). If the measured RF parameter value satisfies the set monitoring condition, the operator is notified of the status of the RF parameter using text, voice, or video according to the designated notification method (S706). Here, the DM 300 measures the RF parameter in real time, and if the measured value of the RF parameter satisfies the set monitoring condition, the DM 300 notifies the state of the RF parameter using the above-described notification method and measures the measurement area and measurement time of the RF parameter. I can tell you.

RF parameter measurement in the measurement area is performed when the status of the RF parameter is notified by the notification method set in accordance with the set monitoring conditions, or when the measured value of the RF parameter does not meet the set monitoring conditions. After finishing, the DM 300 asks whether to continue measuring RF parameters (S708). In this case, if the measurement is not continued, the monitoring and notification of the RF parameter using the DM 300 is finished. Otherwise, the monitoring and notification of the RF parameter is continued in the measurement area.

On the other hand, the method for monitoring and notifying the RF parameters in the DM 300 of the EV-DO system according to a preferred embodiment of the present invention is implemented as an application, a computer-readable CD-ROM, RAM, ROM (Read Only Memory) Can be stored in a recording medium such as a floppy disk, a hard disk, or a magnetic disk.

The above-described application determines the RF parameter to monitor, sets the monitoring condition of the RF parameter, selects a notification method for notifying when the measured value of the RF parameter meets the set monitoring condition, and then selects a DM ( When measuring the RF parameter at 300), it may include a function of checking whether the measured value meets the set monitoring condition and notifying the operator of the status of the RF parameter using the set notification method when the monitoring condition is met.

Here, the application may be embedded in the DM 300 as a computer program and run on the DM 300. The application may be embedded in the AT 400 to run the application on the AT 400 to analyze radio signals and to analyze RF parameters. Measurements can be made to monitor and notify RF parameters.

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. It is intended that the scope of the invention be interpreted by the following claims, and that all descriptions within the scope equivalent thereto shall be construed as being included in the scope of the present invention.

As described above, the present invention determines the RF parameter to be monitored by the DM of the EV-DO system, sets the monitoring condition, and then, if the monitoring condition set by the measured value of the RF parameter measured by the DM satisfies the radio wave environment, It automatically detects that there is an error and informs the operator to determine whether there is an error in the radio environment in real time.

In addition, there is an advantage that the operator can easily recognize the presence or absence of the radio wave environment at the measurement point by informing the operator of the abnormality of the radio wave environment using the text, voice and video.

Claims (28)

A method of monitoring and notifying RF parameters in a DM of an evolution-data only (EV-DO) system including an access terminal (AT), a diagnostic monitor (DM) and an access network (AN), (a) determining, at the DM, an RF parameter to be monitored and setting a monitoring condition and a notification method of the RF parameter; (b) connecting the DM with the AT to measure the RF parameter determined in step (a); And (c) if the measured value of the RF parameter meets the monitoring condition, notifying the state of the RF parameter using the notification method set in step (a) And monitoring and notifying the RF parameter in the DM of the EV-DO system. The method of claim 1, The DM provides a menu for setting conditions for monitoring RF parameters, shows a list of RF parameters in the menu, and determines the RF parameters to monitor from the list. To monitor and notify RF parameters The method of claim 1, The DM sets the monitoring condition by designating the range of the measured value of the RF parameter, sets the notification method for notifying when the measured value of the RF parameter meets the monitoring condition, and notifies the notification method. Setting a status of the RF parameter; monitoring and notifying the RF parameter in a DM of an EV-DO system. The method of claim 3, wherein And the monitoring condition when the measured value of the RF parameter is greater than or equal to a specified value and / or less than a specified value. The method of claim 1, The DM may determine a plurality of the RF parameters to be monitored, and monitor and notify the RF parameters in the DM of the EV-DO system, wherein the DM sets an monitoring condition and a notification method for each of the RF parameters. How to. The method of claim 1, The RF parameter in the DM of the EV-DO system, including RX Power, TX Power, Best ASP SINR, DRC, PER, Best Ec / Io, FTP Throughput, PPP Throughput, Link Imbalance, User Size and RAB How to monitor and notify RF parameters. The method of claim 1, The notification method includes a notification method using a text message, a notification method using a voice, and a notification method using an image. The method of monitoring and notifying RF parameters in a DM of an EV-DO system. The method of claim 7, wherein If the measured value of the RF parameter satisfies the monitoring condition, a DM of an EV-DO system is notified by using one of the notification methods or two or more of the notification methods. To monitor and notify RF parameters The method of claim 7, wherein And wherein the notification method using the text notifies the status of the RF parameter in a text message on the screen of the display unit of the DM. The method of claim 7, wherein And the notification method using the voice is configured to notify the status of the RF parameter by using the speaker of the DM. The method of claim 7, wherein In the notification method using the image, the RF of the DM of the EV-DO system may be notified by displaying an icon indicating a status of the RF parameter on a screen of the display unit of the DM. How to monitor and notify parameters. The method of claim 1, And the DM monitors and notifies the RF parameter of the measurement area by measuring the RF parameter for each measurement area and monitoring and notifying the RF parameter of the measurement area. The method of claim 12, The DM monitors the RF parameters in the DM of the EV-DO system, wherein the DM monitors and notifies the RF parameters for each base station by distinguishing the measurement area based on the coverage of the base station of the EV-DO system. And how to notify. The method of claim 1, The DM measures the RF parameter in real time and if the measured value of the RF parameter satisfies the monitoring condition, using the notification method notifies the status of the RF parameter and informs the measurement area and measurement time of the RF parameter. And monitoring and notifying the RF parameter in the DM of the EV-DO system. A system for monitoring and notifying RF parameters in an EV-DO (Evolution-Data Only) mobile communication network, Determine the RF parameter to monitor and set the monitoring condition of the RF parameter, and set a notification method for notifying when the measured value of the RF parameter meets the monitoring condition, and is connected to an AT (Access Terminal) A diagnostic monitor (DM) for analyzing a radio signal transmitted and received between access networks (AN), measuring the RF parameter, and notifying the status of the RF parameter using the notification method when the RF condition is met; An AT connected with the DM to transmit and receive the AN and the radio signal and to analyze the radio signal at the DM to measure the RF parameter; And AN for transmitting and receiving the AT and the wireless signal The system for monitoring and notifying the RF parameters in the DM of the EV-DO system comprising a. The method of claim 15, The system, A Packet Data Serving Node (PDSN) for receiving packet data from an external packet data network and delivering the packet data to the AN; AN-AAA (Access Network-Authorization Authentication Accounting) for authenticating the AT and authorizing a service; A data location register (DLR) for allocating a unicast access terminal identifier (UATI) to the AT and managing location information of the AT; Authentication Authorization Accounting (AAA) for authenticating the AT, encrypting data, and collecting data required for billing and settlement of the AT; And HA (Home Agent) to track and connect the location of the external packet data network The system for monitoring and notifying the RF parameters in the DM of the EV-DO system, characterized in that further comprises. The method of claim 15, The DM, An input unit for determining the RF parameter and setting the monitoring condition and the notification method; A connection unit connected to the AT to receive the wireless signal; A display unit which displays a measured value of the RF parameter, and notifies the state of the RF parameter by text or an image when the measured value of the RF parameter meets the monitoring condition; A speaker that informs the state of the RF parameter by voice when the measured value of the RF parameter satisfies the monitoring condition; The RF parameter is measured by analyzing the radio signal received from the connection unit, and if the measured value of the RF parameter satisfies the monitoring condition, the status of the RF parameter is determined by using the notification method. A control unit for notifying through the controller and controlling to store the measured value of the RF parameter and state information of the RF parameter in a memory; And A memory storing the measured value of the RF parameter and storing state information of the RF parameter if the measured value of the RF parameter satisfies the monitoring condition System for monitoring and notifying the RF parameters in the DM of the EV-DO system comprising a. The method of claim 15, And the DM monitors and notifies RF parameters in the DM of the EV-DO system, wherein the DM is connected to the AT by wire or wirelessly. The method of claim 17, And said connecting portion comprises at least one of a serial port, a parallel port, a USB port, a wireless LAN module and a Bluetooth chip. The method of claim 17, And said memory comprises at least one of a random access memory (RAM), a flash memory, and a hard disk. The method of claim 15, In the DM of the EV-DO system, the AN is composed of an Access Network Transceiver Subsystem (ANTS), which is the EV-DO base station transmitter, and an Access Network Controller (ANC), the base station controller of the EV-DO method. System for monitoring and notifying RF parameters. The method of claim 15, The AN includes a channel card and a channel board for the EV-DO system and a channel card and a channel board for the CDMA 2000 1X system to support both the EV-DO method and the CDMA 2000 1X method. A system for monitoring and notifying RF parameters in a DM of an EV-DO system, characterized in that it comprises. The method of claim 15, The AT is a system for monitoring and notifying RF parameters in the DM of the EV-DO system, characterized in that the hybrid terminal (HAT: Hybrid Access Terminal) that supports both the EV-DO method and the CDMA 2000 1X method. The method of claim 23, wherein The AT is equipped with an MSM (Mobile Station Modem) 5500 chip manufactured by Qualcomm in order to simultaneously support the EV-DO method and the CDMA 2000 1X method. System for monitoring and notifying parameters. The method of claim 15, The AT includes RF parameters in a DM of an EV-DO system, which includes at least one of a personal digital assistant (PDA), a hand-held PC, a CDMA phone, and a mobile broadband system (MBS) phone. System to monitor and notify. A computer recording an application that implements a method of monitoring and notifying RF parameters in the DM of an Evolution-Data Only (EV-DO) system, including an Access Terminal (AT), Diagnostic Monitor (DM), and Access Network (AN). In the recording medium which can be read by After determining the RF parameter to be monitored, setting the monitoring condition of the RF parameter, and setting a notification method for notifying when the measured value of the RF parameter meets the monitoring condition, the RF parameter in the DM connected to the AT Is an application that checks whether the measured value meets the monitoring condition and if the monitoring condition is met, notifies the state of the RF parameter using the notification method. A computer-readable recording medium that records the data. The method of claim 26, And said application is a computer program embedded in said DM. The computer-readable recording medium having recorded thereon an application implementing a method of monitoring and notifying RF parameters in a DM of an EV-DO system. The method of claim 26, The application is embedded in the AT and executed on the AT to monitor and notify the RF parameters, wherein the application of the DM-implementation method for monitoring and notifying RF parameters in the DM of the EV-DO system can be read by a computer having recorded the application. Recordable media.

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