KR20080103762A - Mobile terminal and communication network access method using same - Google Patents

Abstract

The present invention is directed to a mobile terminal and a method for accessing a communication network using the same. The present invention provides a method for transmitting a WAP server access request signal to the communication network when a WAP server access request is made, and a reconnection request upon receiving a connection rejection signal from the communication network. Transmitting a signal; and receiving a connection acceptance signal according to the reconnection request signal, and connecting to the WAP server through the communication network. The transmitting of the reconnection request signal may include receiving the connection rejection signal. When receiving, the timer is driven and the reconnection request signal is transmitted a predetermined number of times.

Description

Portable device and method for connecting communication network using using thereof

1 is a diagram schematically illustrating a mobile communication system according to an embodiment of the present invention;

2 is a flowchart illustrating a communication network access method using a mobile terminal according to an embodiment of the present invention;

3 is a signal flow diagram between a mobile terminal and a communication network according to an embodiment of the present invention.

The present invention relates to a mobile terminal and a method for accessing a communication network using the same. In particular, when the connection is denied when a connection request is made to the communication network, the mobile terminal and a method for accessing the communication network using the same are requested. It is about.

In general, a mobile communication system provides a service for providing a voice or data through a wireless network. As the mobile communication terminals become popular, the network configuration of the mobile communication system requires a configuration that can transmit voice, data, and the like more efficiently. In particular, since the amount of data transmitted and received increases as various services are provided, according to this trend, a general packet radio service (GPRS) developed from an existing circuit-switched Global System For Mobile Communicaation (GSM) network is developed. It became. In such packet data services, such as GPRS, the user's main purpose is to use conventional Internet-based applications such as file transfer of wireless PCs, sending and receiving e-mails, and browsing the Internet through the World Wide Web (WWW). .

In general, GPRS is divided into a terminal part, an access part, and a core network part. The access part includes a base station and a base station controller, and the core network part includes a serving GPRS support node. 'SGSN' and a Gateway GPRS Support Node (hereinafter referred to as 'GGSN'). This configuration allows a user to receive a data service using his mobile terminal.

In detail, the user can access the internet network through his mobile terminal, and access various packet data servers such as a web server, a video on demand server, and an e-mail server connected to the internet network. Packet service is available. At this time, the servers connected to the Internet network to provide each service has a unique access point name (APN). GPRS uses APNs to activate the PDP Context (Packet Data Protocol Context). This APN is an identifier indicating the location of the packet data server to which the user wishes to connect. That is, each of the packet data servers provides specific packet data at the request of the user. Accordingly, the APNs are used to distinguish packet data servers. In addition, the mobile terminal can receive a packet data service through an access to the APN.

However, the related art described above does not connect for a predetermined time when a connection is denied because a problem occurs in the communication network when a request is made to access the communication network in order to use a packet data service. As a result, the user may experience inconvenience in delaying the connection due to a problem in the communication network rather than the problem of the mobile terminal.

Therefore, the present invention was devised to solve the above-mentioned problems of the prior art, and an object of the present invention is that when a connection denial occurs when attempting to connect to a communication network using a mobile terminal, the mobile terminal is periodically connected to the communication network. A mobile terminal and a communication network connection method using the same are provided.

The method according to an embodiment of the present invention for achieving the above object, the WAP server connection request, the process of transmitting a WAP server connection request signal to the communication network, when receiving a connection rejection signal from the communication network, re-connect Transmitting a request signal and connecting to the WAP server through the communication network upon receiving a connection acceptance signal according to the reconnection request signal. The transmitting of the reconnection request signal includes: When receiving the timer, the timer is driven and the reconnection request signal is transmitted a predetermined number of times.

An apparatus according to an embodiment of the present invention for achieving the above object, the radio frequency communication unit for transmitting and receiving data with the WAP server using a communication network; And a control unit which transmits the WAP server connection request signal to the communication network and transmits a reconnection request signal when receiving the access rejection signal from the communication network, wherein the controller drives a timer and sets the reconnection request signal. The reconnection request signal is transmitted in a number of times.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, only the parts necessary for understanding the operation according to the embodiment of the present invention will be described, it should be noted that the description of other parts will be omitted so as not to distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors are appropriate to the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

For example, hereinafter, the WAP (Wireless Application Protocol) according to an embodiment of the present invention refers to a mobile computer architecture that can connect to a communication network as a communication protocol designed to allow a mobile terminal to access the Internet. That is, the WAP server means a server based on WAP.

In addition, examples of the communication network according to an embodiment of the present invention, GSM, General Packet Radio Service (GPRS), Enhanced Data Rates For GSM based on GSM (Global System for Mobile Communications) radio access (radio access) Evolution) networks, Universal Mobile Telephone System (UMTS) and Wideband Code Division Multiple Access (WCDMA) networks, other communications networks, and combinations of such networks. Such communication networks are generally known and further description thereof will be omitted here. In particular, an embodiment of the present invention will be described as a case where the communication network is GPRS. In addition, the GPRS communication network may include a Serving GPRS Support Node (SGSN) and a Gateway GPRS Support Node (GGSN).

In addition, the mobile terminal according to an embodiment of the present invention is an International Mobile Telecommunication 2000 (IMT-2000), Time Division Multiple Access (TDMA), Global System for Mobile Communication (GSM), Universal Mobile Telecommunication Service (UMTS), and Wideband Code (WCDMA). All communication terminals operating in accordance with one or more applicable communication protocols corresponding to Division Multiple Access, etc., Portable Multimedia Player (PMP), MP3 Player, Digital Broadcast Receiver, Personal Information Terminal (PDA) It will be apparent that the present invention can be applied to all information and communication devices such as digital assistants, smart phones and mobile phones, laptops or notebook computers, and applications thereof.

1 is a view schematically showing a mobile communication system according to an embodiment of the present invention.

Referring to FIG. 1, a mobile communication system according to an embodiment of the present invention may include a mobile terminal 100, a communication network 200, and a WAP server 300.

In addition, the mobile terminal 100 according to an embodiment of the present invention is a radio frequency (RF) communication unit 110, data processing unit 120, audio processing unit 130, input unit 140, display unit 150, The storage unit 160 and the controller 170 are configured to be included.

The RF communication unit 110 forms a communication channel with the base station under the control of the control unit 170 to perform data communication and voice call. The RF communication unit 110 wirelessly transmits user data to another external mobile terminal using the communication channel. The RF communication unit 110 tunes to a channel frequency (Turning) to extract a signal carried on the channel frequency, a tuner, an RF transmitter for up-converting and amplifying the frequency of the transmitted signal, and a low noise amplification and frequency of the received signal It may include an RF receiver for converting down.

The data processor 120 is responsible for processing voice data transmitted from the audio processor 130 and the like, numeric / text data input from a user, and data transmitted from the RF communication unit 110. The data processor 120 may include a transmitter configured to encode and modulate a signal transmitted through the RF communicator 110, and a receiver configured to demodulate and decode the received signal. That is, the data processor 120 includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice.

The audio processor 130 plays a function of reproducing the audio signal output from the controller 170 or transmitting an audio signal such as a voice input from the microphone MIC to the controller 170. That is, the audio processor 130 converts the voice / sound data into an audible sound through the speaker SPK under the control of the controller 170 and outputs the audible sound. In addition, the audio processor 130 outputs audio data such as a voice received from the microphone MIC.

The input unit 140 includes a plurality of input keys and function keys for receiving numeric or character information and setting various functions. The function keys may include direction keys, side keys, shortcut keys, and the like, which are set to perform a specific function. In addition, the input unit 140 transmits a key signal input in relation to the function control of the portable terminal 100 to the control unit 170. In particular, when the user inputs a key for requesting communication with the WAP server 300, the input unit 140 generates a key signal corresponding to the input key and transmits it to the control unit 170.

 The display unit 150 displays various menus of the portable terminal 100, user data input by the user, function setting information, or various information provided to the user. The display unit 150 may be formed of a liquid crystal display (LCD), and may be included in an input means when the LCD is formed in the form of a touch screen. In particular, when the user requests communication with the WAP server 300, the display unit 150 according to the present invention, a standby screen for communicating with the WAP server 300, a screen connected to the WAP server 300 to perform communication, etc. Can be displayed.

The storage unit 160 stores user data generated by a user and data transmitted / received during communication, including an application program required for operating a function according to an exemplary embodiment of the present invention. In addition, the storage 160 may include one or more buffers for temporarily storing user data generated while executing a predetermined application program. The storage unit 160 may largely include a program area and a data area. In particular, the data area according to the present invention may store a reconnection timer that is driven in the reconnection mode when the portable terminal 100 is switched to the reconnection mode. In addition, the data area may store the number of times, period, etc. of requesting reconnection to the communication network 200 in the reconnection mode.

The controller 170 controls the overall operation of the mobile terminal 100 and the signal flow between the internal blocks of the mobile terminal 100. In particular, when the user requests a connection of the WAP server 300, the control unit 170 according to the present invention transmits a signal for requesting the connection to the WAP server 300 to the communication network 200. That is, the controller 170 requests the communication network 200 to allocate a channel for accessing the WAP server 300. For example, when a user requests access to the WAP server 300, the controller 170 transmits an PDP context activation request signal to the communication network 200. Upon receiving an immediate assignment reject signal from the communication network 200, the controller 170 switches to the reconnection mode and attempts to reconnect to the WAP server 300. Here, the controller 170 drives the reconnection timer to request reconnection at a predetermined period for the set reconnection attempt number. This is because, after the communication network 200 receives the PDP context activation request signal for accessing the WAP server 300 from the mobile terminal 100, the mobile terminal 100 receives the WAP server ( Make sure you can connect to 300). If the mobile terminal 100 cannot access the WAP server 300, the communication network 200 immediately transmits an immediate assignment rejection signal to the mobile terminal 100. The communication network 200 also drives a timer, such as T3380. The timer expires after 30 seconds. When 30 seconds have elapsed since the communication network 200 starts a timer, the communication network 200 sends a re-response signal according to the PDP context activation request signal to the portable terminal 100, for example, PDP activation acceptance (Activate PDP). Transmit Context Accept signal or PDP Activation Reject signal. Accordingly, the controller 170 may request for reconnection to the communication network 200 to attempt reconnection before the timer of the communication network 200 expires, for example, an PDP context activation request signal. Send

Meanwhile, FIG. 1 illustrates a block configuration required for describing an operation according to an exemplary embodiment of the present disclosure for convenience of description, but the present disclosure is not limited thereto. That is, the portable terminal 100 of the present invention may further include a camera, a digital broadcasting module and / or a portable (wireless) internet module according to the provision form thereof.

In the above, the configuration for accessing the communication network 200 using the mobile terminal 100 according to an embodiment of the present invention has been described. Hereinafter, a method of accessing a communication network 200 using the mobile terminal 100 according to an embodiment of the present invention will be described with reference to FIG. 2.

2 is a flowchart illustrating a method of accessing a communication network 200 using a mobile terminal 100 according to an embodiment of the present invention.

Referring to FIG. 2, when a user requests access to the WAP server 300, the controller 170 detects this and requests a connection to the WAP server 300 in step S101. Herein, the controller 170 transmits a PDP context activation request signal to the communication network 200 to access the WAP server 300. The communication network 200 determines whether communication is possible between the mobile terminal 100 and the WAP server 300 after receiving the PDP context activation request signal from the controller 170. If the communication network 200 determines that the mobile terminal 100 cannot communicate with the WAP server 300, the communication network 200 immediately transmits an immediate assignment rejection signal to the mobile terminal 100, and the controller 170. ) Detects it in step S102.

When the control unit 170 receives the immediate assignment reject signal, the control unit 170 switches to the reconnection mode in step S103. In addition, the controller 170 drives the reconnection timer. In detail, the communication network 200 transmits an immediate assignment reject signal to the controller 170 and drives the T3380 timer. In addition, the controller 170 may recognize a time point of transmitting a response signal transmitted from the communication network 200 after expiration of the T3380 timer by driving a timer synchronizing with the T3380 timer.

In addition, the communication network 200, after 30 seconds of running the T3380 timer re-response signal according to the PDP Context Activation Request (Activate PDP Context Request) signal, for example, PDP Activation Accept (PDP Context Accept) signal or PDP activation rejection (Activate PDP Context Reject) signal is transmitted. Accordingly, the control unit 170 may reconnect to the communication network 200 before the T3380 timer of the communication network 200 expires in order to more efficiently connect to the communication network 200, for example, a PDP context activation request (Activate PDP Context Request). Send a signal. The controller 170 may transmit an PDP context activation request signal at a predetermined period and a set number of times. For example, the controller 170 may transmit a reconnection request signal for five times at a period of 5 seconds. If the control unit 170 receives the PDP Activation Accept (Activate PDP Context Accept) signal, which is the access acceptance signal in step S105, and successfully connects with the WAP server 300, the controller 170 may request the WAP server 300 requested by the user in step S106. Perform communication.

When the portable terminal 100 according to the present invention attempts to connect to the WAP server 300 through the communication network 200, when the mobile terminal 100 receives an immediate assignment reject signal, the mobile terminal 100 receives a predetermined assignment rejection signal. By attempting to reconnect at intervals, the WAP server 300 can be attempted more efficiently.

However, if it is determined that the controller 170 is not connected to the WAP server 300 in step S105, the controller 170 checks whether the number of reconnection attempts is n times in step S107. That is, if the number of reconnection attempts matches the set n times, the controller 170 stops the reconnection attempt and checks whether 30 seconds have elapsed since the transition to the reconnection mode in step S108. If the reconnection mode has elapsed for 30 seconds, the controller 170 receives a response signal from the communication network 200 in step S109, and in step S110 the response signal is a connection acceptance signal, eg, PDP activation acceptance (Activate PDP). Context Accept) signal. If the control unit 170 confirms that the re-response signal is an PDP Activation Accept signal, it proceeds to step S107 and performs communication with the WAP server 300 that the user has requested to access.

Hereinafter, a signal flow between the mobile terminal 100 and the communication network 200 according to the present invention will be described with reference to FIG. 3.

3 is a signal flow diagram between the mobile terminal 100 and the communication network 200 according to an embodiment of the present invention.

Referring to FIG. 3, when the user requests access to the WAP server 300, the mobile terminal 100 according to an embodiment of the present invention requests a PDP context activation request to the communication network 200 in step S201. Send a signal. If it is determined that communication with the portable terminal 100 is impossible after receiving the PDP context activation request signal, the communication network 200 immediately transmits an immediate assignment reject signal in step S202. The mobile terminal 100 switches to the reconnection mode in step S203 and retransmits a reconnection request signal, for example, an Activate PDP Context Request signal, to the communication network 200 in step S204. Communication network 200 Transmits a response signal according to the PDP context activation request signal re-transmitted by the portable terminal 100, for example, an PDP activation accept signal. After receiving an Accept PDP Context Accept signal, the communication is performed with the WAP server 300 through the communication network 200.

As described above, in the detailed description of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the claims below, but also by the equivalents of the claims.

As described above, in the mobile terminal proposed by the present invention and a communication network access method using the same, when the connection is denied when attempting to connect to the communication network, the mobile terminal attempts to reconnect to connect to the communication network more efficiently. You can try

Claims (11)

In the communication network access method in a mobile communication system, Transmitting a WAP server connection request signal to the communication network when requesting a WAP server connection; Transmitting a reconnection request signal upon receiving an access rejection signal from the communication network; And connecting to the WAP server through the communication network upon receiving the access acceptance signal according to the reconnection request signal. The method of claim 1, The process of transmitting the reconnection request signal, And receiving a connection reject signal and driving a timer, and transmitting the reconnection request signal a set number of times during the timer driving time. The method of claim 2, If the reconnection request signal is transmitted the predetermined number of times, stopping the reconnection request signal transmission, and receiving a re-response signal according to the WAP server connection request signal from the communication network. Way. The method of claim 3, wherein And if the re-response signal is a connection acceptance signal, connecting to the WAP server through the communication network. The method of claim 3, wherein And the timer is terminated before receiving the responsive signal. The method of claim 2, When the connection acceptance signal for the reconnection request signal is received before the reconnection request signal is transmitted the set number of times, the transmission of the reconnection request signal is stopped and connected to the WAP server through the communication network. Way. In a mobile terminal, Radio frequency communication for transmitting and receiving data to and from a WAP server using a communication network; And And a control unit which transmits the WAP server access request signal to the communication network and transmits a reconnection request signal when the access reject signal is received from the communication network. The method of claim 7, wherein The control unit, And a timer, and transmitting the reconnection request signal at a set number of times. The method of claim 8, The control unit, When the reconnection request signal is transmitted the set number of times, the reconnection request signal transmission is interrupted, and when receiving the re-response signal according to the WAP server connection request signal from the communication network, the reconnection signal is connected to the WAP server according to the re-response signal. A mobile terminal, characterized in that. The method of claim 9, The timer, And the terminal terminates before receiving the re-response signal. The method of claim 8, And a storage unit for storing the timer and the set number of times.

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