KR100723720B1 - Method and system for receiving forwarded call by using mobile communication terminal - Google Patents

Abstract

The present invention relates to a service providing method and system for switching incoming calls in a mobile communication terminal.

The present invention provides an outgoing mobile communication terminal that generates an incoming call to perform a voice call via a mobile communication network, an incoming call transfer mobile terminal that receives the incoming signal and outputs an alarm, and receives a call transfer by switching the incoming signal. The mobile communication terminal includes a target mobile communication terminal and a base station transmitter, a base station controller, and a mobile switching center (MSC), and includes a radio access network (RAN) for providing a path of the voice call. In a mobile communication system provided, a specific feature code is received from a call forwarding target mobile communication terminal while the incoming call is received from the originating mobile communication terminal to the call forwarding mobile communication terminal. After performing authentication by using the call forwarding target to the call forwarding target The present invention provides a service providing system for converting and receiving an incoming call in a mobile communication terminal, comprising a home location register (HLR) for converting to a mobile communication terminal and providing the voice call.

According to the present invention, when an incoming call is received while the user of the mobile communication terminal is away from the office or at home, other nearby users can receive the incoming call by switching to their mobile communication terminal by inputting a simple feature code. It is effective to provide call forwarding service easily.

Mobile communication, terminal, incoming, forwarding, receiving

Description

Service providing method and system for switching incoming calls in mobile communication terminal and receiving method

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

2 is a flowchart illustrating a method of switching and receiving an incoming call in a mobile communication terminal according to an exemplary embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: outgoing mobile communication terminal 120: outgoing wireless access network

130: receiving wireless access network 138: home location register

140: call forwarding mobile communication terminal 150: call forwarding target mobile communication terminal

The present invention relates to a service providing method and system for switching incoming calls in a mobile communication terminal. More specifically, when an incoming call is received while the user of the mobile communication terminal is away from the office or at home, another user nearby inputs a simple feature code to convert the incoming call into his mobile communication terminal and receives the incoming call. It is about.

With the rapid development of computer, electronic and communication technologies, various wireless communication services using a wireless communication network are being provided. The subscribers of the mobile communication service can freely move and talk with the other party anytime and anywhere using the wireless communication service, and can also text various information such as news, weather, sports, stocks, exchange rates, and traffic information through the wireless Internet service. , Voice, image, etc. can be provided in various forms.

In order to provide such a service, a mobile communication system has been developed through a first generation analog AMPS (Advanced Mobile Phone Systems) method and a second generation cellular (PCS) / personal communication service (PCS) method. Recently, IMT-2000 (International Mobile Telecommunication-2000), a third generation high speed data communication, has been used. IMT-2000 was developed for personal mobility guarantee and high-speed data transmission to ensure mobility between countries by integrating systems of countries using different wireless access standards, and developed separately from synchronous CDMA 2000 and asynchronous WCDMA. It was. In particular, by using IMT-2000 service, it is possible to provide various multimedia services (AOD, VOD, etc.) at a faster speed as well as improving existing voice and WAP service quality.

However, the existing mobile communication system has a limitation in providing high-speed wireless Internet due to high base station construction cost and high usage rate of the wireless Internet, and a limited screen size of the mobile communication terminal. Therefore, a high-speed portable Internet service (WiBro: Wireless Broadband Internet) has emerged, which guarantees portability and mobility and can use a high-speed wireless Internet service at a low rate.

The mobile internet service uses various types of portable communication terminals such as laptops, PDAs, and handheld PCs to access the Internet in indoor and outdoor stationary environments and mobile environments at walking speeds and low to medium speeds. It is a possible service. The portable Internet service system uses the 2.3 GHz frequency band and provides mobility of 60 km / h per hour. The downlink transmission rate is 24.8 Mbps, but the uplink transmission rate is 5.2 Mbps. Wireless data system. In addition, the portable Internet service system uses a time division duplex (TDD) in a duplex scheme or an orthogonal frequency division multiple access (OFDMA) / TDMA (multiple access) scheme in order to effectively use an allocated frequency spectrum. Time Division Multiple Access).

In such a mobile communication system, various services are provided. Among them, a call forwarding service for converting an incoming call received by the mobile communication terminal to another mobile communication terminal and connecting the same is provided.

Conventional call forwarding service has been provided in such a manner that a user who wants to perform call forwarding subscribes to a call forwarding service and registers a call forwarding target mobile communication terminal to convert an incoming call received by the mobile communication terminal to another mobile communication terminal.

In the conventional call forwarding service, the call forwarding has to be continued before the user releases the incoming call service. Therefore, the call forwarding service has to be released. There was a problem in that call forwarding could not be performed.

In order to solve the above problems, the present invention, when an incoming call is received while the user of the mobile communication terminal is away from the office or at home, other users around the input a simple feature code to the incoming call to their mobile communication terminal It is an object of the present invention to provide a method and system for switching and receiving.

In order to achieve the above object, the present invention, an outgoing mobile communication terminal for generating an incoming call to perform a voice call via a mobile communication network, a call forwarding mobile communication terminal for receiving the incoming signal and outputting an alarm, the incoming A radio access network (RAN) that includes a call forwarding target mobile communication terminal and a base station transmitter, a base station controller, and a mobile switching center (MSC) for switching and receiving a call to provide a path for the voice call. In the mobile communication system for providing the voice call, a specific feature code from the call forwarding target mobile communication terminal while the incoming call is received from the originating mobile communication terminal to the call forwarding mobile communication terminal; After receiving and performing authentication using the specific feature code, Providing a service by switching the incoming call in the mobile communication terminal, characterized in that it comprises a Home Location Register (HLR) for converting the incoming call to the call transfer target mobile communication terminal to provide the voice call Provide a system.

According to another object of the present invention, an outgoing mobile communication terminal for generating an incoming call to perform a voice call via a mobile communication network, a call forwarding mobile communication terminal for receiving the incoming signal and outputting an alarm, the incoming signal A radio access network (RAN) configured to include a call forwarding target mobile communication terminal, a base station transmitter, a base station controller, and a mobile switching center (MSC) for switching and receiving a path for providing a voice call. And receiving a specific feature code from the call forwarding target mobile communication terminal while receiving the incoming call from the originating mobile communication terminal to the call forwarding mobile communication terminal, and performing authentication using the specific feature code. After that, the incoming call is switched to the call forwarding target mobile communication terminal so that the voice In a mobile communication system for providing a voice call, including a home location register (HLR) for providing a call, the method for converting the incoming call, comprising: (a) receiving the incoming call from the originating mobile communication terminal; Setting a call path to connect the incoming call to the call forwarding mobile communication terminal when the call occurs; (b) performing the authentication when a call forwarding request is received by receiving the specific feature code from the call forwarding target mobile communication terminal; (c) as a result of step (b), rejects the incoming call request if the authentication fails; and if the authentication succeeds, the incoming call connected to the incoming call mobile terminal by the mobile communication switch. Requesting disconnection; And (d) requesting the mobile communication exchange to connect the incoming call to the incoming call transfer target mobile communication terminal, and converting the incoming call to the incoming call transfer target mobile communication terminal. The present invention provides a service providing method for receiving and converting an incoming call in a mobile communication terminal.

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 is a block diagram schematically illustrating a mobile communication system according to a preferred embodiment of the present invention.

According to a preferred embodiment of the present invention, a mobile communication system includes an outgoing mobile terminal 110, an outgoing radio access network (RAN) 120, a receiving radio access network 130, and a home location register (HLR). ) 138, the call forwarding mobile communication terminal 140, and the call forwarding target mobile communication terminal 150.

In the present invention, for convenience of description, the outgoing mobile communication terminal 110, the call forwarding mobile communication terminal 140, and the call forwarding target mobile communication terminal 150 to the mobile communication terminals 110, 140, and 150, and the outgoing wireless access network 120. And the receiving wireless access network 130 are referred to as the wireless access networks 120 and 130, and the outgoing mobile communication exchange 126 and the receiving mobile communication exchange 136 are collectively referred to as mobile communication exchanges 126 and 136.

The mobile communication terminals 110, 140, and 150 perform a voice call wirelessly via a mobile communication network, and are provided with a service for switching and receiving an incoming call of the present invention. According to a preferred embodiment of the present invention, when the outgoing mobile communication terminal 110 requests a voice call to the call forwarding mobile communication terminal 140, the call forwarding mobile communication terminal 140 for receiving an incoming call ring or vibrate, etc. Outputs an incoming call alarm of the user, and recognizes the incoming call alarm output from the call forwarding mobile communication terminal 140 and a user located in a short distance and inputs a specific feature code through the call forwarding target mobile communication terminal 150. To receive the incoming call received from the outgoing mobile communication terminal 110 to the call forwarding mobile communication terminal 140.

Here, the specific feature code is a predefined input code, for example, when an incoming call is received by the call forwarding mobile communication terminal 140, a user calls "* 23 +" through the call forwarding target mobile communication terminal 150. When the phone number + password of the call forwarding mobile communication terminal 140 is inputted, when the authentication is successful by performing authentication at the home location register 138, the incoming call received by the call forwarding mobile communication terminal 140 is transferred. Switch to the mobile communication terminal 150 and performs the operation of connecting.

Mobile communication terminal 110, 140, 150 according to a preferred embodiment of the present invention is a PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, hand-held PC (Global) System for Mobile (WD) phones, Wide-band CDMA (W-CDMA) phones, CDMA-2000 phones, Mobile Broadband System (MBS) phones, and the like. Here, MBS phone refers to a terminal to be used in the fourth generation system currently being discussed.

In addition, the mobile communication network according to the preferred embodiment of the present invention is IS (Interim Standard) -95 network, GSM network, CDMA2000 1x network, CDMA2000 3x network, CDMA2000 EV-DO (Evolution-Data Only) network, WCDMA network and Wibro ( It may include a wireless access network (120, 130) by various mobile communication systems such as a wireless broadband Internet (Wireless Broadband Internet) network.

The wireless access networks 120 and 130 receive and process voice call requests from the mobile communication terminals 110, 140 and 150, perform handoff processing and radio resource management.

The wireless access network 120, 130 according to the preferred embodiment of the present invention includes a base station transmitter 122, 132, a base station controller 124, 134, and a mobile switching center (MSC) 126, 136. It is configured and supports both synchronous and asynchronous mobile communication systems. Here, in the synchronous mobile communication system, the base station transmitters 122 and 132 are base transceiver stations (BTSs), and the base station controllers 124 and 134 are base station controllers (BSCs), and in the asynchronous mobile communication system, the base station transmitters 122, 132 is a radio transceiver subsystem (RTS), and base station controllers 124 and 134 are radio network controllers (RNCs).

The base station transmitters 122 and 132 receive voice call request signals from the mobile communication terminals 110, 140 and 150 through a traffic channel among the signal channels and transmit them to the base station controllers 124 and 134. In addition, the base station transmitters 122 and 132 are network termination devices that perform baseband signal processing, wired / wireless conversion, and transmission and reception of wireless signals, and are directly connected to the mobile communication terminals 110, 140, and 150. The base station transmitters 122 and 132 are arranged in units of cells, respectively, and transmit call requests generated from the mobile communication terminals 110, 140, and 150 to the mobile communication exchanges 126 and 136, or manage their own. Location registration is performed to determine the location of the mobile communication terminals (110, 140, 150) existing in the cell area.

The base station transmitters 122 and 132 transmit the position information of the base station transmitters 122 and 132 from a global positioning system (GPS) (not shown) through a system parameter message of a forward link call channel. To pass. The mobile communication terminals 110, 140, and 150 calculate new movement information of the mobile communication terminals 110, 140 and 150 by using the location information of the base station transmitters 122 and 132 of the cell to which they belong. Can be registered.

Location registration is a procedure for informing the mobile communication switchboards 126, 136 of the location, status, identifier, slot period, and other features of the mobile terminal 110, 140, 150 through the corresponding base station transmitters 122, 132. In order to establish an incoming call to the mobile communication switchboards 126 and 136 through the base station transmitters 122 and 132, the mobile communication terminals 110, 140 and 150 can be effectively called. The location registration of the mobile communication terminal (110, 140, 150) is the mobile communication terminal (110, 140, 150) when the power is turned on or off, the mobile communication terminal (110, 140, 150) Handoff (Handoff) And when system parameters of the mobile communication terminals 110, 140, 150 are changed.

The base station controllers 124 and 134 control the base station transmitters 122 and 132, and allocate and release radio channels for the mobile communication terminals 110, 140 and 150, the mobile communication terminals 110, 140 and 150 and the base station. Transmit Output Control of Transmitters 122 and 132, Soft Handoff and Hard Handoff Determination, Transcoding and Vocoding, GPS Clock Distribution, Base Station Transmitters 122 and 132 Perform the operation and maintenance function for). The base station controllers 124 and 134 transmit subscriber information of the mobile communication terminals 110, 140 and 150 registered with the location information to the mobile communication switchboards 126 and 136, and receive the received information through the base station transmitters 122 and 132. The call request signal is transmitted to the mobile communication switchboards 126 and 136.

The mobile communication exchanges 126 and 136 perform basic and additional service processing, incoming and outgoing call processing of subscribers, location registration and handoff procedures, and interworking with other networks. The mobile communication switch (126, 136) of the IS-95 A / B / C network includes an Access Switching Subsystem (ASS) that performs distributed call processing, an Interconnection Network Subsystem (INS) that performs centralized call processing, Subsystems include a Central Control Subsystem (CCS) that is responsible for centralizing operations and maintenance, and a Location Registration Subsystem (LRS) that performs storage and management of information on mobile subscribers.

In addition, the mobile switching centers 126 and 136 for 3rd and 4th generations may include an Asynchronous Transfer Mode (ATM) switch (not shown). To increase. In addition, the ATM switch may include a mobile subscriber station (Mobility Control Subsystem), a cell that performs subscriber registration, an update function, and an interface function with the base station controllers 124 and 134, which perform wireless communication of the mobile communication terminals 110, 140, and 150. Call Control Subsystem performing call processing on a per-unit basis, Service Control Subsystem performing billing function for various supplementary service subscribers, Intelligent Peripheral Subsystem for providing various supplementary services And subsystems.

When the location registration of the mobile communication terminal (110, 140, 150) is performed through the wireless access network (120, 130), the mobile communication switch (126, 136), Visitor Location Register (VLR) (not shown) After temporarily storing the subscriber information of the mobile communication terminal (110, 140, 150), and requests the location registration of the mobile communication terminal (110, 140, 150) to the home location register (138).

The home location register 138 receives registration information of the mobile communication terminals 110, 140, and 150 from a visitor location register (not shown) installed in the mobile communication exchange 126, 136. Delete, check location, etc. In addition, the home location register 138 stores profile information of the mobile communication terminals 110, 140, and 150. Here, the profile information refers to a mobile identification number (MIN), an electronic serial number (ESN), and subscribed mobile communication service information of the mobile communication terminals 110, 140, and 150.

Home location register 138 according to a preferred embodiment of the present invention, if a specific feature code is input from the call forwarding target mobile communication terminal 150 to provide a service for switching the incoming call of the present invention, Authentication is performed by determining whether the password entered in the code matches a password previously set by the user of the call forwarding mobile communication terminal 140. When the home location register 138 succeeds in authenticating the call forward target mobile communication terminal 150, the home location register 138 requests the receiving mobile communication exchange 136 to release the setting of the incoming call of the call forwarding mobile communication terminal 140. The incoming call signal received by the terminal 140 is changed to a call forwarding target mobile communication terminal 150. Therefore, the incoming call from the outgoing mobile communication terminal 110 is switched to the incoming call conversion target mobile communication terminal 150 requesting the incoming call transfer through the feature code while being received by the incoming call forwarding mobile communication terminal 140.

2 is a flowchart illustrating a method of switching and receiving an incoming call in a mobile communication terminal according to an exemplary embodiment of the present invention.

In a preferred embodiment of the present invention, the incoming call forwarding mobile terminal 140 registers the incoming call forwarding password in the home location register 138 in advance so that the incoming call can be switched to another mobile communication terminal when the incoming call is received. Therefore, when a call forwarding request using the feature code is received, the home location register 138 determines whether or not the call match with the password set in the call forwarding mobile communication terminal 140 performs authentication.

When an incoming call occurs from the outgoing mobile communication terminal 110 according to a preferred embodiment of the present invention (S210), the outgoing wireless access network 120 establishes a call path with the receiving wireless access network 130 and the call forwarding mobile communication terminal 140 Request the reception of the incoming call to the (S220).

When the incoming call mobile terminal 140 receives an incoming call and outputs an incoming call alarm such as a bell or vibration, the user recognizes the incoming call and the incoming call is transferred to the incoming call destination mobile communication terminal 150 in advance to receive the incoming call. Enter the specific feature code defined in. Here, the specific feature code includes a code for requesting call forwarding, a phone number of the call forwarding mobile communication terminal, and a password for authentication.

The home location register 138 determines whether a feature code requesting a call forward is input (S230), and when the feature code is input, the home location register 138 receives the call using the phone number and password of the call forwarding mobile terminal 140 included in the feature code. The mobile terminal 140 determines whether or not the password matches the set password and performs authentication.

The home location register 138 determines whether the authentication is successful (S240). If the authentication fails, the home location register 138 rejects the call forwarding request. If the authentication is successful, the home location register 138 transmits the call forwarding mobile terminal (136) to the receiving mobile communication switch (136). Request for disconnection of an incoming call connected to 140 (S250).

When the home location register 138 releases the incoming call connection of the call forwarding mobile communication terminal 140 at the receiving mobile communication exchange 136, the call is transferred to the destination mobile communication terminal 150 to the receiving mobile communication exchange 136. By setting a road request to connect the incoming call (S260), the incoming call generated from the outgoing mobile communication terminal 110 is switched to the incoming call conversion target mobile communication terminal 150 and connected (S270).

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, when an incoming call is received while the user of the mobile communication terminal is away from the office or at home, other nearby users input a simple feature code to switch the incoming call to their mobile communication terminal. It can be received by the effect that it is easy to provide a call forwarding service.

In addition, since the password is registered only once to perform the call forwarding, the trouble of having to perform the call forwarding setting every time can be eliminated.

Claims (11)

An outgoing mobile communication terminal generating an incoming call to carry out a voice call via a mobile communication network; a call forwarding mobile communication terminal receiving the incoming signal and outputting an alarm; A mobile terminal configured to include a terminal and a base station transmitter, a base station controller, and a mobile switching center (MSC) to provide the voice call, including a radio access network (RAN) for providing a path of the voice call. In a communication system, Receiving a specific feature code from the call forwarding target mobile communication terminal while receiving the incoming signal from the originating mobile communication terminal to the call forwarding mobile communication terminal, and performing authentication using the specific feature code. And a home location register (HLR) for converting the incoming call into the call transfer target mobile communication terminal to provide the voice call. Service providing system for receiving and switching the incoming call in the mobile communication terminal comprising a. The method of claim 1, The specific feature code is a service providing system for receiving and converting the incoming call in the mobile communication terminal, characterized in that it comprises at least one or more of the code for requesting the call, the phone number and password of the incoming call transfer mobile communication terminal. The method of claim 1, The home location register is a service providing system for receiving and converting the incoming call in the mobile communication terminal, characterized in that for registering the password to be used for the authentication in advance from the call forwarding mobile communication terminal. The method of claim 1, The home location register converts and receives an incoming call in the mobile communication terminal, wherein the authentication is performed by determining whether a password registered by the call forwarding mobile communication terminal matches a password included in the specific feature code. Service delivery system. The method of claim 1, And the home location register converts and receives an incoming call in the mobile communication terminal, when the authentication is successful, performing a request for disconnection of the incoming call from the incoming call switching mobile communication terminal to the mobile communication exchange. The method of claim 1, When the mobile communication exchange releases the connection of the incoming call of the incoming call forwarding mobile communication terminal, the home location register requests the incoming call connection to the incoming call transfer target mobile communication terminal. A service providing system for receiving and transferring a call. An outgoing mobile communication terminal generating an incoming call to carry out a voice call via a mobile communication network; a call forwarding mobile communication terminal receiving the incoming signal and outputting an alarm; The call forwarding from the radio access network (RAN) and the originating mobile communication terminal, including a terminal, a base station transmitter, a base station controller, and a mobile switching center (MSC) to provide a path of the voice call. Receiving a specific feature code from the call forwarding target mobile communication terminal while receiving the incoming call to the mobile communication terminal, performing authentication using the specific feature code, and then receiving the call forwarding target. A home location register (HLR) for converting to a mobile communication terminal and providing the voice call In the mobile communication system for providing the voice call, including a Home Location Register, Method for switching the incoming call, (a) when the incoming call is generated from the originating mobile communication terminal, establishing a call path and connecting the incoming call to the incoming call transfer mobile terminal; (b) performing the authentication when a call forwarding request is received by receiving the specific feature code from the call forwarding target mobile communication terminal; (c) as a result of step (b), rejects the incoming call request if the authentication fails; and connects the incoming call connected to the incoming call mobile terminal to the mobile switching center if the authentication succeeds. Requesting release; And (d) requesting the mobile communication exchange to connect the incoming call to the incoming call transfer target mobile terminal, and converting the incoming call to the incoming call transfer target mobile communication terminal to connect the incoming call; Service providing method for receiving and switching the incoming call in the mobile communication terminal comprising a. The method of claim 7, wherein prior to step (b), Determining whether the specific feature code is received from the call forwarding target mobile communication terminal; The service providing method of receiving and switching the incoming call in the mobile communication terminal characterized in that it further comprises. 8. The method of claim 7, wherein in step (b), The specific feature code is a service providing method for receiving and converting the incoming call in the mobile communication terminal, characterized in that it comprises at least one or more of a code for requesting the call forward, the phone number and password of the call forwarding mobile communication terminal. The method of claim 7, wherein The home location register switches the incoming call in the mobile communication terminal, characterized in that for registering the password to be used for the authentication in advance from the call forwarding mobile communication terminal. The method of claim 7, wherein The home location register converts and receives an incoming call in the mobile communication terminal, wherein the authentication is performed by determining whether a password registered by the call forwarding mobile communication terminal matches a password included in the specific feature code. How we deliver the service.

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