KR100621329B1 - Method and System for Providing Voice and Data Service by Using IP Based Wireless Network in Specific Space - Google Patents

Abstract

The present invention relates to a method and system for providing voice and data services in a specific space using an IP-based wireless network.

The present invention provides a voice call and data service in a specific space using an IP (Internet Protocol) -based wireless network, comprising: (a) a home service installed in the specific space by using a wireless interface; Determining whether the connected user terminal is a terminal having a mobile telephone function when connected to a device; (b) performing a location registration procedure for the user terminal through a base station controller if the user terminal is a terminal having the mobile telephone function as a result of the determination of step (a); And (c) if the user terminal does not have the mobile telephone function as a result of the determination of step (a), performing access to a wireless Internet network according to an IP access procedure. The present invention relates to a method for providing a voice call and a data service in a specific space using a wireless network, and a system for performing the same.

According to the present invention, an IP-based wireless network can provide a voice and data service provided by a conventional wired network as a mobile communication service.

IP, WLAN, Bluetooth, Handoff, Mobile Network, Home Service Device

Description

Method and System for Providing Voice and Data Service by Using IP Based Wireless Network in Specific Space}

1 is a block diagram schematically illustrating a one-phone service system using Bluetooth;

2 is a block diagram schematically illustrating a system for providing voice and data services in a specific space using an IP-based wireless network according to an embodiment of the present invention;

3A and 3B illustrate a protocol stack for data and voice call service of a mobile terminal;

4 is a flowchart illustrating a procedure of providing a voice and data service in a specific space using an IP-based wireless network according to a preferred embodiment of the present invention.

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

200: mobile terminal 210: home service equipment

220: wireless receiver 230: wireless transmitter

240: BSC 250: MSC

260: PCF 270: PDSN

The present invention relates to a method and system for providing voice and data services in a specific space using an IP-based wireless network. More specifically, effective voice in an IP-based wireless network using dual mode terminals and home service devices that simultaneously support mobile phone interfaces covering all areas and wireless communication interfaces covering small specific spaces such as hotspot areas. And a method and system for providing voice and data services in a specific space using an IP-based wireless network capable of providing data services.

As computers, electronics, and communication technologies have advanced rapidly, various wired and mobile communication services using wired and wireless communication networks are being provided.

Wired communication services not only provide voice call services that provide voice calls between users using wired telephone lines and data services using wired data communication networks such as Integrated Services Digital Network (ISDN), but also recently, Asymmetric Digital Subscriber Line and VDSL (Very High-data Rate Digital Subscriber Line) to provide high-speed data services. Wired communication services can provide high quality voice and data services at a low price, but there are limitations to providing services at a fixed location.

The mobile communication service is a communication service provided wirelessly while moving in a place other than a fixed location using a mobile communication network, and provides a voice call service and a data service like a wired communication service. The mobile communication service starts from the low-quality voice call-oriented first generation mobile communication service provided by the analog cellular Advanced Mobile Phone System (AMPS), and uses the digital cellular Global System for Mobile (GSM) and CDMA (Code) codes. International Mobile Telecommunication 2000 (IMT-2000) (eg, CDMA2000 1X, 3X, EV-DO, WideBand CDMA, etc.), which is a third generation mobile communication system, through a second generation mobile communication service provided by Division Multiple Access. Is evolving into an enhanced voice and data service.

Mobile communication service was initially expensive due to frequency usage fee, expensive mobile communication terminal and system price, and had a problem that only low data rate data service could be provided, but it was cheaper due to the development of mobile communication technology. The mobile communication market is growing rapidly, with the ability to provide improved quality voice and data services at a royalty rate.

With the rapid growth of the mobile communication market and the saturation of demand for the ultra-high speed data service market using the wired network, the growth of the wired communication market is rapidly slowing down. Accordingly, wireline carriers are developing wired and wireless integrated services to create new communication demand, and some services are commercially available.

Wired / Wireless integrated service combines low-cost, high-quality transmission technology in wired communication with convenient mobility in wireless communication.A representative service is a public WLAN service combining high-speed Internet technology and wireless local area network (WLAN) technology. And one-phone services combining mobile and landline telephones.

Public WLAN service installs WLAN access point (AP) at subscriber network end such as ADSL, VDSL, E1, etc., and subscriber can install terminal equipped with network adapter for WLAN within coverage of access point. As a service enabling wireless data services to be provided, wireless broadband services can be accessed and used wirelessly within the coverage of the WLAN service. However, since the coverage of the WLAN service is only a few tens of meters, there is a limitation in mobility, and there is a problem in that handoff cannot be performed when the coverage of the WLAN service is out of coverage.

One-phone service is a wired / wireless integrated service for replacing a mobile communication service with a wired communication service in a specific area such as a hotspot area to which one-phone service is applied. The main feature of the one-phone service is that the terminal operates in dual mode to provide voice and data services using different communication systems in the hotspot area and outside area. In other words, the mobile communication technology can be used in an external area and the Bluetooth technology can be used in a hotspot area, thereby allowing one-phone service subscribers to select and receive an inexpensive communication service according to a communication environment.

Here, Bluetooth is a standard that can transmit and receive data at high speed using a radio frequency without using a physical cable for communication between various communication terminals (for example, mobile phones, PDAs, laptops, etc.). Short-range wireless communication technology that enables.

1 is a block diagram schematically illustrating a one-phone service system using Bluetooth.

In the one-phone service using Bluetooth, a Bluetooth access point is installed at the end of a landline telephone, and when a call connection is made from a terminal having a Bluetooth function, the Bluetooth access point receives it and connects to a public switched telephone network (PSTN) to enable a call. do. In other words, instead of a cordless phone operating at a frequency of 900 MHz indoors, a terminal with a Bluetooth function operating at a frequency of 2.4 GHz is used. There is an advantage that the call is possible through the mobile communication network.

As shown in FIG. 1, a user terminal provided by one-phone service supports dual interfaces of a mobile phone and Bluetooth. If the user terminal is located in a hotspot area, such as indoors, it is possible to make calls through the PSTN using Bluetooth technology, use a landline phone number, and use the mobile phone interface only for incoming calls. When the user terminal moves to an outdoor area, it is out of the coverage of Bluetooth, and the user terminal performs an incoming / outgoing call through the mobile phone interface.

However, in the conventional one-phone service, the user terminal must maintain two numbers for the mobile phone and the landline phone, and always operate both the mobile phone interface and the Bluetooth interface for incoming and outgoing calls of the landline phone and the mobile phone in the hotspot area. There is a drawback in that it consumes a lot of power. In addition, since wired communication networks and mobile communication networks have different structures and different interfaces, the Hotspot area uses Bluetooth to make calls to landline phones and then moves to outside areas or calls from mobile phones from outside. There is a problem in that handoff cannot be performed when moving to an area.

Accordingly, there is a need for a method that can solve the above-mentioned problems and effectively provide a voice and data service from a mobile communication provider's point of view.

In order to solve this problem, the present invention provides an effective voice in an IP-based wireless network by using a dual mode terminal that simultaneously supports a mobile telephone interface covering the entire area and a wireless communication interface covering a small area such as a hotspot area. And a method and system for providing voice and data services in a specific space by using an IP-based wireless network capable of providing data services.

According to a first object of the present invention, in a method for providing a voice call and data service in a specific space using an IP (Internet Protocol) based wireless network, (a) the user terminal uses the wireless interface to specify Determining whether the connected user terminal is a terminal having a mobile telephone function when accessing a home service apparatus installed in a space; (b) If the user terminal is a terminal having the mobile telephone function as a result of the determination of step (a), the home service device is recognized as a base station of a mobile communication network and is located at the user terminal through a base station controller. Performing a registration procedure; And (c) if the user terminal does not have the mobile telephone function as a result of the determination of step (a), performing access to a wireless Internet network according to an IP access procedure. It provides a method for providing a voice call and data services in a specific space using a wireless network of.

According to a second object of the present invention, in a system for providing a voice call and data service in a specific space using an IP (Internet Protocol) -based wireless network, a mobile station for operating as a base station of a mobile communication network When a user terminal including both a telephone interface and a wireless interface but having a mobile telephone function requests access using the wireless interface, it is determined whether the user terminal performs a location registration procedure for performing the mobile telephone function. When it is determined that the user terminal performs the location registration procedure as a result of the determination, the user terminal is recognized as a base station of a mobile communication network and sets the access path toward a base station controller. As a result of the determination, the user terminal registers the location. If you determine that you are not performing the procedure, A home service apparatus for controlling to provide the voice call and data service in a manner of establishing the access path toward a pre-wired internet access node; And a wired / wireless transceiver for transmitting a signal between the home service device and the base station controller (BSC) to provide a voice call and data service in a specific space using an IP-based wireless network. Provide a system.

According to a third object of the present invention, a home service apparatus for providing a voice call and data service in a specific space using an IP (Internet Protocol) based wireless network, wherein the home service apparatus is a base station of a mobile communication network. A mobile phone interface and a wireless interface for operating as a station, and when a user terminal having a mobile telephone function requests access using the wireless interface, the user terminal registers a location for performing the mobile telephone function. If it is determined that the user terminal performs the location registration procedure, it is recognized as a base station of a mobile communication network, and sets the access path toward a base station controller. The user terminal can perform the location registration procedure If not determined, the voice call and data service is provided in a specific space by using the IP-based wireless network, which provides the voice call and data service by setting the access path toward a wireless Internet access node. It provides a home service device.

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.

2 is a block diagram schematically illustrating a system for providing a voice and data service in a specific space using an IP-based wireless network according to a preferred embodiment of the present invention.

As shown in FIG. 2, a system for providing voice and data services in a specific space using an IP-based wireless network according to an embodiment of the present invention includes a user terminal 200, a home service equipment 210, Wireless receiver 220, wireless transmitter 230, base station controller (BSC) 240, mobile switching center (MSC) 250, packet control function (PCF) 260 , A packet data serving node (PDSN) 270, a wireless internet network 280, and the like.

In the present invention, an IP-based wireless network such as Wi-MAX, a wireless LAN bridge, or a high-speed portable Internet network is used as an alternative to a subscriber access network of a wired telephone network. Therefore, a mobile communication service provider can provide wireless data service to a specific space or a private home where a user requires a low fee through such a wireless network which is inexpensive and easy to install.

To this end, the user terminal 200 according to a preferred embodiment of the present invention generally includes a dual mode in which a mobile telephone interface for accessing a mobile telephone network and a wireless interface for accessing a home service device 210 in a specific space are provided. Mode). That is, in a space not covered by the home service device 210, the mobile phone network is connected to the mobile telephone network, and in a specific space covered by the home service device 210, the home service device 210 is connected to the home service device 210 through a wireless interface. do. Here, the wireless interface available in a specific space may be a wireless LAN (WLAN) or Bluetooth (Bluetooth).

Home service device 210 according to a preferred embodiment of the present invention is a device installed in a specific space in a home or building, a wireless interface and a base station controller 240, such as a wireless LAN or Bluetooth for connection with the user terminal 200 It provides a connection for voice call and data service to the designated user terminal 200 including all the signal interface provided by the base station in the mobile phone network for the connection with the mobile phone network.

As shown in FIG. 2, voice and data services in a specific space basically follow the structure of a mobile telephone network using an IP-based wireless network according to a preferred embodiment of the present invention, and can be interworked with a conventional mobile telephone network. shall. However, in the preferred embodiment of the present invention, in the specific space covered by the home service device 210, the home service device 210 operates by replacing the role of the base station connected to the base station controller 240. The service device 210 includes the general functions of the base station of the mobile telephone network.

In addition, the home service device 210 according to the preferred embodiment of the present invention determines whether the user terminal 200 performs a registration procedure for a voice call when the user terminal 200 requests a connection using a wireless interface. Has a function of differently assigning a connection path according to the determination result. That is, the user terminal 200 distinguishes between a case of a terminal such as a mobile phone that supports voice call and a case of a terminal which performs only Internet access, such as a laptop, thereby making a different processing path.

That is, when the user terminal 200 requesting connection is a dual mode terminal having a mobile phone function, the location registration procedure is performed in the same manner as the location registration procedure in the mobile telephone system after the home service device 210 is connected. If the notebook 200 is a notebook, it attempts to access the Internet without performing this registration procedure. Therefore, the home service device 210 determines whether the user terminal 200 performs this registration procedure to distinguish the user terminal. At this time, if it is determined that the user terminal 200 performs the registration procedure for the voice call, the home service apparatus 210 sets the access path toward the base station controller 240 and the user terminal 200 performs the registration procedure. If not determined, the access path is set to the wireless Internet access node so that the Internet can be directly accessed via the base station controller 240 according to the IP access procedure.

In more detail, the home service apparatus 210 according to the preferred embodiment of the present invention includes both a mobile telephone interface and a wireless interface for operating as a base station of a mobile communication network, but has a mobile terminal function. When the 200 requests a connection using a wireless interface, it is determined whether the user terminal 200 performs a location registration procedure for performing a mobile phone function, and as a result, the user terminal 200 performs a location registration procedure. If it is determined that the mobile station is recognized as a base station (Base Station) of the mobile communication network to set the access path toward the base station controller 240, and if it is determined that the user terminal 200 does not perform the location registration procedure, wireless Internet access To provide voice calls and data services by establishing an access path towards the nodes. To control.

Through the function of the home service device 210 it is possible to minimize the influence of the mobile telephone network.

The wireless receiver 220 according to the preferred embodiment of the present invention is a module for receiving a signal transmitted through the wireless transmitter 230 from the base station controller 240 of the mobile telephone network. It can also be inserted into. Wireless technologies that can be used in the wireless receiver 220 and the wireless transmitter 230 according to the preferred embodiment of the present invention are Wi-MAX, high-speed portable Internet technology, broadband wireless access technology (BWA) and WLAN bridge Technology and the like.

Here, when communication between the home service device 220 and the base station controller 240 is possible by wire, the wireless receiver 220 of FIG. 2 may be replaced by a wired receiver, and the wireless transmitter 230 may be replaced by a wired transmitter.

The base station controller 240 according to a preferred embodiment of the present invention controls a base station, and assigns and releases radio channels for a terminal, transmit power control of the terminal and the base station, soft handoff and hard handoff between cells. It performs handoff, transcoding and vocoding, global positioning system (GPS) clock distribution, and operation and maintenance of the base station 102.

The mobile switching center 250 according to the preferred embodiment of the present invention performs a switching function for the call request of the user terminal 200 and the control function to enable the mobile communication network to operate efficiently. That is, basic and additional service processing of the terminal, incoming and outgoing call processing of the subscriber, location registration and handoff procedure processing, interworking with other networks, and the like. The switching center of the IS-95 A / B / C system is equipped with an Access Switching Subsystem (ASS) that performs distributed call processing, an Interconnection Network Subsystem (INS) that performs centralized call processing, and centralization of operation and maintenance. Subsystems such as a central control subsystem (CCS) in charge, and a location registration subsystem (LRS) for storing and managing information on mobile subscribers. In addition, switching centers for 3rd and 4th generation may include an Asynchronous Transfer Mode (ATM) switch (not shown), which increases the transmission speed and the efficiency of line use by packet transmission in cells.

The packet controller 260 according to the preferred embodiment of the present invention is connected to the base station controller 240 and the PDSN 270 to perform a function of setting / maintaining / releasing a connection with the PDSN 270, and the base station controller 240 Request radio resource allocation for packet data transmission, collect billing information, and transmit it to PDSN 270. In addition, the buffering function and the state management function of the user terminal 200 are performed until the packet data received from the PDSN 270 is transmitted to the user terminal 200.

As described above, in the conventional one-phone service, the mobile telephone network and the wired telephone network are separated so that handoff between these two systems is not possible at all. Therefore, it is necessary to extend the mobile phone handoff function in order for a voice call handoff to be made between a user's use in a specific space and a use outside the specific space. To this end, in the preferred embodiment of the present invention, the home service device 210 and the user terminal 200 can accommodate the mobile phone protocol. That is, when a user makes a call in a specific space covered by the home service device 210, the home service device 210 is recognized as a base station, and thus performs the role of the base station. Therefore, the user terminal 200 makes a voice call. When the home service device 210 moves to another place in a specific space covered by the home service device 210, or when moving to a specific space from elsewhere, the handoff process between the base station controller 240 becomes possible.

To this end, the home service device 210 according to the preferred embodiment of the present invention is configured to be interoperable with the base station controller 240 and the user terminal 200 may also provide procedures and parameters necessary for such interworking. Therefore, even if the user terminal 200 performs a voice call through a wireless LAN or Bluetooth in the home, the user terminal 200 operates by applying the calling procedure in the mobile telephone network according to the mobile telephone signaling procedure. The home service device 210 is recognized as a base station of the mobile communication network through communication with the base station controller 240 and operates like a base station, which emulates a base station by extracting and applying only necessary functions from the base station software of the mobile communication network. It is recognized as a base station.

3A and 3B illustrate protocol stacks for data and voice call services of a user terminal.

FIG. 3A illustrates a protocol stack structure for a data service when the user terminal 200 supports a WLAN interface, and FIG. 3B illustrates a protocol stack structure for a voice call service.

As shown in FIGS. 3A and 3B, only the wireless transmission section is a WLAN between the user terminal 200 and the home service device 210, and the operation of the actual voice call and data service is performed in the same manner as in the mobile telephone network. . Therefore, when the user moves from the specific space covered by the home service device 210 to another place, handoff processing between the base station controller 240 is possible, which is the user terminal 200 and the home service device 210. ) Follows a signaling procedure in the mobile communication network. In addition, all incoming and outgoing calls can be made through the home service device 210 when the subscriber is in a specific space covered by the home service device 210. This is because when the user terminal 200 moves into a specific space, location registration is performed by a location registration procedure in a mobile communication network.

4 is a flowchart illustrating a procedure of providing a voice and data service in a specific space using an IP-based wireless network according to a preferred embodiment of the present invention.

First, when the user terminal 200 accesses a home service device 210 installed in a specific space by using a wireless interface such as wireless LAN or Bluetooth (S400), the user terminal 200 moves in the home service device 210. It is determined whether to perform a location registration procedure in the telephone network (S402).

If it is determined that the user terminal 200 performs a location registration procedure, the home service apparatus 210 operates as a base station, transmits a connection request signal of the user terminal 200 to the base station controller 240, and performs a mobile telephone network. The connection to the server is performed (S404).

On the other hand, if it is determined that the user terminal 200 does not perform a registration procedure for a voice call, the home service apparatus 210 transmits an access request signal of the user terminal 200 to a wireless Internet access node to a wireless Internet network. (S406).

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 has an effect of effectively providing a wired / wireless integrated service by utilizing a high-speed, low-cost IP transmission network than a mobile communication network using a home service device. According to the present invention, it is possible to replace a portion of a wired telephone and a wired high-speed Internet communication service, and has an advantage of allowing a user to use a more convenient service at a lower communication rate.

In addition, in the present invention, since the home service device plays a role of a base station without using a wired telephone network, it solves a handoff problem that was impossible in a one-phone service using a conventional wired telephone network and a wireless telephone network. In certain spaces, only the wireless interface needs to be driven in other spaces. Therefore, the power consumption is lower than that of the conventional one-phone service.

Claims (15)

In the method of providing a voice call and data service in a specific space by using an IP (Internet Protocol) based wireless network, (a) when the user terminal accesses a home service apparatus installed in the specific space using a wireless interface, determining whether the home service apparatus receives a location registration signal for mobile communication from the connected user terminal; ; (b) When the location registration signal is received as a result of the determination of step (a), the home service device is recognized as a base station of a mobile communication network and performs a location registration procedure for the user terminal through a base station controller. step; And (c) if the location registration signal is not received as a result of the determination of step (a), performing a connection to a wireless Internet network according to an IP access procedure Method for providing a voice call and data services in a specific space using an IP-based wireless network comprising a. The method of claim 1, The user terminal is a dual mode terminal having a mobile telephone interface for accessing the mobile telephone network and the wireless interface for accessing the home service apparatus, or accessing the home service apparatus without the mobile telephone function. A method of providing a voice call and a data service in a specific space using an IP-based wireless network, characterized in that the terminal for embedding only the wireless interface for. The method of claim 2, When the user terminal is the dual mode terminal having the mobile phone function, the voice call and the data in a specific space using an IP-based wireless network, characterized in that it operates according to a mobile phone signaling procedure when accessing the wireless network. How to Provide Services. The method of claim 1, The wireless interface is a wireless LAN or Bluetooth (Bluetooth) using the IP-based wireless network, characterized in that for providing a voice call and data services in a specific space. The method of claim 1, The home service device is recognized as a base station of a mobile communication network during voice call and data connection of the user terminal having the mobile phone function, so that the user terminal covers a specific space covered by the home service device during the service. Performs handoff processing between the base station controllers when moving to a specific space from the specific space or at a location other than the specific space in a specific space using an IP-based wireless network. How to provide voice calls and data services. In a system for providing voice calls and data services in a specific space using an IP (Internet Protocol) based wireless network, It includes both a mobile phone interface for operating as a base station of the mobile communication network and a wireless interface for short-range wireless communication, when the user terminal requests access using the wireless interface, the user terminal is the mobile phone function If it is determined that the user terminal performs the location registration procedure, it is recognized as a base station of a mobile communication network and determines the access path toward a base station controller. A home service device for controlling to provide the voice call and data service by setting the access path toward a wireless Internet access node if it is determined that the user terminal does not perform the location registration procedure; And Wired / wireless transceiver for transmitting a signal between the home service device and the base station controller (BSC) System for providing voice calls and data services in a specific space using an IP-based wireless network comprising a. The method of claim 6, A user terminal having a dual mode embedded with a mobile telephone interface for accessing the mobile telephone network and a wireless interface for accessing the home service device. System for providing voice calls and data services in a specific space using an IP-based wireless network, characterized in that further comprising. The method of claim 6, When the signal transmission between the home service device and the base station controller is wireless, the wireless technology used in the wired / wireless transceiver is Wi-MAX, high-speed portable Internet technology, broadband wireless access technology (BWA) or wireless LAN bridge. A system for providing a voice call and data service in a specific space by using an IP-based wireless network characterized in that the technology. The method of claim 6, The home service apparatus emulates the base station by extracting only a necessary function from base station software of a mobile communication network and recognizes the base station by using an IP-based wireless network. System to provide. The method of claim 6, The user terminal provides a voice call and a data service in a specific space by using an IP-based wireless network, characterized in that to operate in accordance with a mobile phone signaling procedure when accessing the wireless network. The method of claim 6, The wireless interface is a system for providing voice calls and data services in a specific space using an IP-based wireless network, characterized in that the wireless LAN (Wireless LAN) or Bluetooth (Bluetooth). The method of claim 6, The home service device performs a voice call and data service in a specific space by using an IP-based wireless network, which performs the same function as a base station (BS) of the mobile telephone network to interface with a base station controller. System to provide. The method of claim 6, The home service device operates as a base station of the mobile communication network during voice call and data connection of the user terminal having the mobile phone function, so that the user terminal covers a specific space covered by the home service device during the service. Performs handoff processing between the base station controllers when moving to a specific space from the specific space or at a location other than the specific space in a specific space using an IP-based wireless network. System for providing voice calls and data services. A home service device that provides voice call and data services in a specific space using an IP (Internet Protocol) based wireless network, wherein the home service device is a mobile phone interface for operating as a base station of a mobile communication network. And a wireless interface for short-range wireless communication, when a user terminal having a mobile telephone function requests access using the wireless interface, whether the user terminal performs a location registration procedure for performing the mobile telephone function; If it is determined that the user terminal performs the location registration procedure as a result of the determination, the user terminal is recognized as a base station of a mobile communication network and sets the access path toward a base station controller. Do not perform the above location registration procedure If it is determined not to provide the voice call and data services in a specific space using the IP-based wireless network, characterized in that to provide the voice call and data services by setting the access path toward a wireless Internet access node. Home service device. The method of claim 14, The home service device includes a wired / wireless transmission / reception module for transmitting and receiving a signal between the home service device and the base station controller (BSC) in a specific space using an IP-based wireless network. And a home service device for providing data services.

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