KR100562252B1 - Method and system for monitoring and notifying a plurality of RF parameters in DM of EV-DO system - Google Patents

Abstract

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

The present invention relates to a method for monitoring and notifying a plurality of 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 on the DM a plurality of RF parameters to be monitored and setting a monitoring condition and a notification method of the plurality of RF parameters; (b) connecting the DM with the AT to measure the plurality of RF parameters determined in step (a); And (c) if the measured values of the plurality of RF parameters meet the monitoring condition, notifying a radio wave environment condition by the measured values of the plurality of RF parameters using the notification method set in step (a). It provides a method and system for monitoring and notifying a plurality of RF parameters in the DM of the EV-DO system comprising a.

According to the present invention, the DM determines a plurality of RF parameters to be monitored and then measures the RF parameters, if there is an abnormality in the radio wave environment in the measurement area, it automatically detects it and informs the operator to determine whether there is an abnormality of the radio wave environment in real time. There is an effect that can be judged.

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

Description

Method and System for Monitoring and Notifying Multiple RF Parameter in DM of EV-DO System} 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 a plurality of 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 a plurality of RF parameters to be monitored by a DM and setting monitoring conditions and a notification method of the RF parameters 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 a plurality of RF parameters 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 a plurality of 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 a plurality of RF parameters in a Diagnostic Monitor (DM) of an EV-DO (Evolution-Data Only) system. More specifically, after determining a plurality of RF parameters to be monitored, setting monitoring conditions for the RF parameters, and setting a notification method for notifying when the measured values of the plurality of RF parameters meet the monitoring conditions, the DM is connected to AT (Access). Terminal and measure the RF parameters, and if the measured values of the RF parameters meet the monitoring conditions, the operator will be notified of the abnormality of the radio wave environment by the measured values of the multiple RF parameters by the selected notification method. A method and system for monitoring and notifying a plurality of RF parameters in a DM of a system.

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, implementation of various application services by combining call quality and wired / wireless network with the same level as 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 standard established as an international standard by 3GPP2 (3rd Generation Partnership Projects2), an international standardization organization for high-speed packet data transmission. to be. 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.

Here, the radio wave environment data collected and analyzed by the DM may include RF parameters. The RF parameter is a factor for knowing the propagation environment of the measurement area, and when the DM is used, the RF parameter can be measured by analyzing radio signals 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.

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.

In addition, the measurement result of the DM only tells only the measurement value of one RF parameter, there is a problem that there is no function to inform the propagation environment of the measurement area by analyzing the measurement value of a plurality of RF parameters.

Therefore, if there is an abnormality in the radio wave environment of the measurement area, it is possible to detect and inform the operator in real time and to set the monitoring conditions for a plurality of RF parameters and analyze the measured values of the plurality of RF parameters. There is a need for a method that can notify the user in real time.

In order to solve this problem, the present invention determines a plurality of RF parameters to be monitored by the DM of the EV-DO system, sets a monitoring condition, sets a notification method for notifying when the monitoring conditions are met, and then measures the DM. When the measured values of the plural RF parameters satisfy the set monitoring condition, the set notification method informs the operator of the radio wave environment condition by the measured values of the plural RF parameters to determine whether there is an abnormality in the radio wave environment in real time. An object of the present invention is to provide a method and system for monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system.

According to a first object of the present invention, a plurality of RF parameters are monitored 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 of notifying, comprising: (a) determining a plurality of RF parameters to be monitored on the DM and setting monitoring conditions and a notification method of the plurality of RF parameters; (b) connecting the DM with the AT to measure the plurality of RF parameters determined in step (a); And (c) if the measured values of the plurality of RF parameters meet the monitoring condition, notifying a radio wave environment condition by the measured values of the plurality of RF parameters using the notification method set in step (a). It provides a method for monitoring and notifying a plurality of RF parameters in the DM of the EV-DO system comprising a.

According to a second object of the present invention, in a system for monitoring and notifying a plurality of RF parameters in an EV-DO type mobile communication network, a plurality of RF parameters to be monitored are determined to set monitoring conditions of the plurality of RF parameters. And setting a notification method for notifying when the measured values of the plurality of RF parameters meet the monitoring conditions, analyzing a radio signal transmitted and received between the AT and the AN and measuring the plurality of RF parameters. A DM for notifying a radio wave environment state by the measured values of the plurality of RF parameters using the notification method if the monitoring 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 plurality of RF parameters; And an AN for transmitting / receiving the AT and the wireless signal. The system provides a system for monitoring and notifying a plurality of 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 a plurality of RF parameters in the DM of an EV-DO system including AT, DM, and AN. Determine a plurality of RF parameters to monitor, set a monitoring condition of the plurality of RF parameters, select a notification method for notifying when the measured values of the plurality of RF parameters meet the monitoring condition, and then connect to the AT. When the plurality of RF parameters are measured by the DM, it is checked whether the measured values satisfy the monitoring conditions, and when the monitoring conditions are met, the radio wave environment state is determined by the measured values of the plurality of RF parameters using the notification method. To provide a computer-readable recording medium for recording the application.

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 can be used to determine the abnormality of the radio wave environment in the measurement area, and can be used for RX Power, TX Power, Best ASP Active Serving Pilot Signal to Noise Ratio (DRNR), Data Rate Control (DRC), and Packet Error Rate (PER). ), Best Ec / Io, File Transfer Protocol (FTP) 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 refers to the signal-to-noise ratio of the base station, which is calculated as the ratio of signal power and thermal noise signal power of other base stations to the signal power of the base station with the largest signal power, and 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 may determine whether there is an abnormality in the radio wave environment of the measurement area by analyzing the measurement values of the above-described RF parameters, and the DM of the present invention, which will be described later, determines a plurality of RF parameters to be monitored, sets a monitoring condition, and conforms thereto. The operator is informed of the radio wave environment state by the measured values of the plurality of RF parameters and the measured values of the plurality of RF parameters.

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 a plurality of RF parameters, sets a monitoring condition and a notification method. It is also possible to determine individual RF parameters to set a monitoring condition and a notification method. To this end, the input unit 302 may be configured as a keypad to determine a plurality of RF parameters to be monitored on a screen displayed on the display 304, and set a monitoring condition and a notification method.

The display unit 304 displays the measured values of the plurality of RF parameters when the plurality of RF parameters are measured by the DM 300. When the text or image is selected as the notification method, the display unit 304 meets the monitoring conditions. The operator informs the operator of the radio wave environment by the measured values of the plurality of RF parameters by text or video. 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 controller 306 analyzes a radio signal received from the connection unit 312 to measure a plurality of RF parameters, and if the measured values of the plurality of RF parameters meet the monitoring condition received from the input unit 302, The operator is notified of the radio wave environment state by the measured value through the display unit 304 or the speaker 308, and the memory 310 displays the radio wave environment state by the measured values of the plurality of RF parameters and the measured values of the plurality of RF parameters. Control to save to. 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 radio wave environment condition by the measured values of the plurality of RF parameters if the measured values of the plurality of RF parameters meet the monitoring conditions.

The memory 310 stores measured values of the plurality of RF parameters, and when the measured values of the plurality of RF parameters meet the monitoring condition, store the radio wave environment state by the measured values of the plurality of RF parameters. 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 RX Power and Best ASP SINR as an RF parameter, the monitoring condition as RX Power is less than -90 dBm and Best ASP SINR is -5 If the case is set to be smaller than dBm, and if it is set to notify the operator of the radio wave environment status as a poor RF environment by using a text and voice as a notification method for this, the control unit 306 receives the radio signal received from the connection unit 312 If the measured values of RX Power and Best ASP SINR satisfy the above-described monitoring conditions, the display unit 304 outputs a message indicating that the RF environment is poor in text on the screen, and the RF environment is voiced in the speaker 308. It will output a message that it is bad. Thus, the operator can see that the RX environment is poor in the measurement area.

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

As shown in FIG. 4, a system for monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system according to an exemplary embodiment of the present invention includes a DM 300, an access terminal (AT). 400, access network (AN) (405), mobile switching center (MSC: Mobile Switching Center, hereinafter referred to as MSC) 410, general exchange Public Switched Telephone Network (PSTN) (hereinafter referred to as PSTN) (415), Packet Data Serving Node (PDSN) (420), Home Agent (HA: Home Agent) , Hereinafter referred to as '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 the Data Location Register (DLR) 450 may be included.

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.

The DM 300 according to a preferred embodiment of the present invention determines a plurality of RF parameters to be monitored, sets a monitoring condition, sets a notification method for notifying when the monitoring condition is met, and is connected to the AT 400 to the AT The operator analyzes the radio signals transmitted and received between the 400 and the AN 405, and measures a plurality of RF parameters to meet the monitoring conditions. Inform

AT 400 according to a preferred embodiment of the present invention as a terminal for the EV-DO data service to transmit and receive a radio signal with the AN (405), DM 300 to analyze a radio signal to measure a plurality of RF parameters It is connected to the 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, MBS phone refers to a mobile communication terminal to be used in the fourth generation system that is currently 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. In addition, the ANC 409 is 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 a plurality of RF parameters to be monitored by a DM and setting a monitoring condition and a notification method of the RF parameters 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, it is determined whether to select a plurality of RF parameters or individual RF parameters (S502). When selecting a plurality of RF parameters, a list of RF parameters is displayed on a menu, and a plurality of RF parameters to be monitored can be determined from the list (S504).

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 a plurality of RF parameters to be monitored, a monitoring condition of the determined plurality of RF parameters is set, and a notification method for notifying when the measured values of the plurality of RF parameters meets the monitoring conditions is set (S506). ). The monitoring conditions of the plurality of RF parameters can be set by specifying a range of measured values. For this purpose, the upper and / or lower limits of the plurality of RF parameter measurement values may be set so that the monitoring condition may be set when the measurement value is above the specified value and / or below the specified value.

After the monitoring condition is set, a notification method for notifying the measured value of the plurality of RF parameters meeting the set monitoring condition is selected. 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, and may use a plurality of RF parameters to an operator by using one or more of the above-described notification methods. The radio wave environment state can be notified by the measured value of.

After setting the notification method, the radio wave environment state to be notified to the operator is input using the set notification method. For example, if RX Power and Best ASP SINR are selected as RF parameters to monitor, and the measured values are smaller than the specified values as monitoring conditions, and the notification method is selected, RX Power and Best ASP SINR are selected. If the measured value of the system satisfies the set monitoring conditions, the message 'RF environmental bad' is displayed as the radio wave environment of the measurement area to inform the operator that the measured value of RX Power and Best ASP SINR is low. The operator can be notified by the input and set notification method.

The notification method using the text notifies the radio wave environment state by the measurement value of the plurality of RF parameters in a text message on the screen of the display unit 304 of the DM 300, and the notification method using the voice is the The speaker 308 notifies the radio wave environment state by the measured values of the plurality of RF parameters, and the notification method using the image displays an icon on the screen of the display unit 304 of the DM 300. The radio wave environment state by the measured value of several RF parameter can be notified.

Meanwhile, when selecting individual RF parameters, one RF parameter may be determined from a list of RF parameters that can be monitored by the DM 300 (S508). If one RF parameter is determined, a monitoring condition for one determined RF parameter is set, and a notification method for notifying when a measured value of the RF parameter meets the monitoring condition is set (S510).

Here, even when the individual RF parameters are selected, a plurality of individual RF parameters to be monitored may be determined from the list of the aforementioned RF parameters. In this case, unlike the case where a plurality of RF parameters are selected, monitoring conditions and a notification method for each selected RF parameter can be set.

After the determination of the plurality of or individual RF parameters, the setting of the monitoring conditions and the notification method described above, it is asked whether to select another RF parameter from the menu for setting the conditions for monitoring the RF parameters (S512). Here, if no other RF parameter is selected, the condition setting for the RF parameter to be monitored is finished, and when selecting another RF parameter, the plurality of or one RF parameter is determined again to set the monitoring condition and the notification method.

6 is a table summarizing an example of a result of inputting a monitoring condition and a notification method by selecting a plurality of RF parameters to be monitored by a DM according to a preferred embodiment of the present invention.

Referring to the conditions set in FIG. 6, RX Power and Best ASP SINR were determined as a plurality of RF parameters to be monitored, and RX Power is less than −90 dBm without specifying a lower limit value, and Best ASP SINR is −. The case of less than 5 dB was set as the detection condition, and the notification method was set by the notification method by text, voice, and video. By each notification method, the radio wave environment status is measured by the measurement value of RX Power and Best ASP SINR in 'Bad RF' in text, 'RF environment bad' in voice, 'right hand pointing with finger' in image. Will be displayed.

Therefore, when the conditions for monitoring the RX Power and Best ASP SINR are set under the above-described conditions, and the RX Power value measured by the DM 300 is less than -90 dBm and the Best ASP SINR value is less than -5 dB, The notification method notifies the operator of the radio wave environment of the measurement area.

7 is a flowchart illustrating a method for monitoring and notifying a plurality of 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 conditions for monitoring a plurality of RF parameters, 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 a plurality of RF parameters selected for monitoring the radio wave environment of 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 a plurality of RF parameters are measured in the measurement area, it is checked whether the measured values of the plurality of RF parameters meet the set monitoring condition (S704). When the measured plurality of RF parameter values meet the set monitoring conditions, the operator is notified of the radio wave environment state by the measured values of the plurality of RF parameters using text, audio, or video according to the designated notification method ( S706). Here, the DM 300 measures a plurality of RF parameters in real time, and when the measured values of the plurality of RF parameters meet the set monitoring conditions, the radio wave environment state by the measured values of the plurality of RF parameters using the above-described notification method. The notification may inform the measurement area and measurement time of the plurality of RF parameters.

On the other hand, even when the monitoring conditions and the notification method are selected by selecting the individual RF parameters, if the measured values of the individual RF parameters meet the monitoring conditions, the operator is notified of the radio wave environment state by the measured values of the individual RF parameters by the designated notification method. can do.

In the case of notifying the radio wave environment status by the measured value of the RF parameter by the set notification method or the monitoring condition set by the measured value of the multiple or individual RF parameters. If not, after completing the RF parameter measurement in the measurement area, the DM 300 asks whether to continue measuring the RF parameter (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 selected in the measurement area is continued.

On the other hand, the method for monitoring and notifying a plurality of 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, computer-readable CD-ROM, RAM, ROM (Read Only) Memory), floppy disk, hard disk, magnetic disk, and the like.

The above-described application determines a plurality of RF parameters to monitor, sets a monitoring condition of the RF parameter, selects a notification method for notifying when a measured value of the RF parameter meets the set monitoring condition, and then connects to the AT 400. When the DM 300 measures a plurality of RF parameters, it is checked whether the measured values meet the set monitoring conditions, and if the monitoring conditions are met, the operator operates the radio wave environment state by the measured values of the plurality of RF parameters using the set notification method. It may include a function to notify the user.

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 a radio signal and to analyze a plurality of RF signals. The parameters can be measured to monitor and notify the propagation environment condition by the measured values of the plurality of 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 plurality of RF parameters to be monitored by the DM of the EV-DO system, sets the monitoring conditions, and then satisfies the monitoring conditions set by the measured values of the plurality of RF parameters measured by the DM. This function automatically detects an abnormality in the radio wave environment and informs the operator to determine whether there is an abnormality in the radio wave environment in real time.Measure a plurality of RF parameters by determining a plurality of RF parameters to monitor and setting monitoring conditions. By analyzing the value, it is effective to know the exact propagation environment.

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 (29)

A method for monitoring and notifying a plurality of RF parameters 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) determining at the DM a plurality of RF parameters to be monitored and setting a monitoring condition and a notification method of the plurality of RF parameters; (b) connecting the DM with the AT to measure the plurality of RF parameters determined in step (a); And (c) if the measured values of the plurality of RF parameters meet the monitoring condition, notifying a radio wave environment condition by the measured values of the plurality of RF parameters using the notification method set in step (a); And monitoring and notifying the plurality of RF parameters in the DM of the EV-DO system. The method of claim 1, The DM provides a menu for setting a condition for monitoring RF parameters, determines whether to select a plurality of RF parameters or individual RF parameters from the menu, and then displays a list of RF parameters in the menu. And monitoring and notifying the plurality of RF parameters in a DM of the EV-DO system, wherein the plurality of RF parameters or the individual RF parameters are determined. The method of claim 2, In the case of determining one RF parameter from the list by selecting the individual RF parameter from the menu, the monitoring condition and the notification method for the one RF parameter are set. A method of monitoring and notifying a plurality of RF parameters in a DM. The method of claim 2, When the DM decides to select the individual RF parameters in the menu, the DM can determine a number of the individual RF parameters to be monitored, and setting the monitoring condition and the notification method for each individual RF parameter. A method for monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system. The method of claim 1, The DM sets the monitoring condition by designating a range of measurement values of the plurality of RF parameters, sets the notification method for notifying when the measurement values of the plurality of RF parameters meet the monitoring condition, and the notification. A method of monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system, characterized by setting a propagation environment state based on measured values of the plurality of RF parameters to be notified. The method of claim 5, And monitoring the condition of the plurality of RF parameters in the DM of the EV-DO system, characterized in that the monitoring condition is a case where the measured values of the plurality of RF parameters are equal to or greater than a specified value and / or equal to or less than a specified value. The method of claim 1, The plurality of RF parameters include RX Power, TX Power, Best ASP SINR, DRC, PER, Best Ec / Io, FTP Throughput, PPP Throughput, Link Imbalance, User Size and RAB. A method of monitoring and notifying a plurality of RF parameters in a DM. The method of claim 1, The notification method includes a notification method using a text, a notification method using a voice, and a notification method using an image. The method of monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system. The method of claim 8, If the measured values of the plurality of RF parameters meet the monitoring condition, using one of the notification methods or two or more of the notification methods to notify the radio wave environment state by the measured values of the plurality of RF parameters And monitoring and notifying the plurality of RF parameters in the DM of the EV-DO system. The method of claim 8, In the notification method using the text, a plurality of RF parameters may be obtained from the DM of the EV-DO system, wherein the DM environment of the DM-EV system is notified of a propagation environment state by the measured values of the plurality of RF parameters in a text message on the display unit of the DM. How to monitor and notify. The method of claim 8, The notification method using the voice monitors and notifies a plurality of RF parameters in the DM of the EV-DO system, wherein the DM speaker of the DM is notified of the radio wave environment state by the measured values of the plurality of RF parameters. Way. The method of claim 8, In the notification method using the image, a plurality of DMs in an EV-DO system may be configured to display an icon (Icon) on a screen of the display unit of the DM to notify a radio wave environment state based on measured values of the plurality of RF parameters. To monitor and notify two RF parameters. The method of claim 1, And the DM monitors and notifies the plurality of RF parameters of the measurement area by measuring the plurality of RF parameters for each measurement area, and monitors and notifies the plurality of RF parameters in the DM of the EV-DO system. The method of claim 13, The DM monitors and notifies the plurality of RF parameters for each base station by distinguishing the measurement area based on the coverage of the base station of the EV-DO system. How to monitor and notify RF parameters. The method of claim 1, The DM measures the plurality of RF parameters in real time and if the measured values of the plurality of RF parameters meet the monitoring condition, using the notification method, notifies the radio wave environment state by the measured values of the plurality of RF parameters. And monitoring and notifying the plurality of RF parameters in the DM of the EV-DO system, wherein the DM regions of the plurality of RF parameters are informed of measurement areas and measurement times. A system for monitoring and notifying a plurality of RF parameters in an EV-DO (Evolution-Data Only) mobile communication network, Determine a plurality of RF parameters to be monitored to set monitoring conditions for the plurality of RF parameters, and set a notification method for notifying when the measured values of the plurality of RF parameters meet the monitoring conditions, and access terminal (AT) And analyzing the radio signals transmitted and received between the AT and the access network (AN), and measuring the plurality of RF parameters to meet the monitoring conditions, by measuring the values of the plurality of RF parameters using the notification method. A diagnostic monitor (DM) for notifying a radio wave environment status; 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 plurality of RF parameters; And AN for transmitting and receiving the AT and the wireless signal The system for monitoring and notifying a plurality of RF parameters in the DM of the EV-DO system comprising a. The method of claim 16, 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 a plurality of RF parameters in the DM of the EV-DO system, characterized in that further comprises. The method of claim 16, The DM, An input unit to determine the plurality of RF parameters and to set the monitoring condition and the notification method; A connection unit connected to the AT to receive the wireless signal; A display unit for displaying measurement values of the plurality of RF parameters, and notifying a radio wave environment state by the measured values of the plurality of RF parameters by text or image when the measured values of the plurality of RF parameters meet the monitoring condition; A speaker for notifying a radio wave environment state by the measured values of the plurality of RF parameters when the measured values of the plurality of RF parameters meet the monitoring condition; The plurality of RF parameters are measured by analyzing the radio signals received from the connection unit, and when the measured values of the plurality of RF parameters meet the monitoring condition, the measured values of the plurality of RF parameters are measured using the notification method. A control unit for notifying a radio wave environment condition by the display unit or the speaker, and controlling to store the radio wave environment conditions based on the measured values of the plurality of RF parameters and the measured values of the plurality of RF parameters in a memory; And A memory for storing measured values of the plurality of RF parameters and storing a radio wave environment state by the measured values of the plurality of RF parameters if the measured values of the plurality of RF parameters meet the monitoring condition; System for monitoring and notifying a plurality of RF parameters in the DM of the EV-DO system comprising a. The method of claim 16, And the DM monitors and notifies a plurality of 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 18, 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 18, And the memory includes at least one of a random access memory (RAM), a flash memory, and a hard disk, wherein the plurality of RF parameters are monitored and notified by the DM of the EV-DO system. The method of claim 16, In the DM of the EV-DO system, the AN is composed of an Access Network Transceiver Subsystem (ANTS), which is a base station transmitter of the EV-DO method, and an Access Network Controller (ANC), a base station controller of the EV-DO method. A system for monitoring and notifying a plurality of RF parameters. The method of claim 16, 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 a plurality of RF parameters in the DM of the EV-DO system, characterized in that provided. The method of claim 16, The AT monitors and notifies a plurality of RF parameters in the DM of the EV-DO system, wherein the AT is a hybrid access terminal (HAT) supporting both the EV-DO scheme and the CDMA 2000 1X scheme. . The method of claim 24, The AT is equipped with a MSM (Mobile Station Modem) 5500 chip manufactured by Qualcomm to simultaneously support the EV-DO method and the CDMA 2000 1X method. For monitoring and notifying two RF parameters. The method of claim 16, The AT is a plurality of RF in the DM of the EV-DO system, characterized in that it comprises at least one of a personal digital assistant (PDA), a hand-held PC (CDMA), a CDMA phone and a Mobile Broadband System (MBS) phone System for monitoring and notifying parameters. Application recorded for implementing a method of monitoring and notifying a plurality of RF parameters 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). In a computer-readable recording medium, After determining a plurality of RF parameters to be monitored, setting the monitoring conditions of the plurality of RF parameters, and selecting a notification method for notifying when the measured values of the plurality of RF parameters meet the monitoring conditions, When the plurality of RF parameters are measured by the connected DM, it is checked whether the measured values meet the monitoring conditions, and when the monitoring conditions are satisfied, the propagation environment state by the measured values of the plurality of RF parameters is determined using the notification method. Notifying application A computer-readable recording medium that records the data. The method of claim 27, And said application is a computer program embedded in said DM. A computer-readable recording medium having recorded thereon an application implementing a method of monitoring and notifying a plurality of RF parameters in a DM of an EV-DO system. The method of claim 27, The application is an application that implements a method for monitoring and notifying a plurality of RF parameters in the DM of the EV-DO system, characterized in that embedded in the AT and executed on the AT to monitor and notify the plurality of RF parameters. Recordable computer-readable recording media.

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