KR100605904B1 - Method for embodying telecommunication network in home by use of the bluetooth - Google Patents

Abstract

In a home wireless communication network using Bluetooth, a Bluetooth module of one of the home wireless terminals is set as a central controller to set a protocol and packet for wireless telephone and remote control in advance, and to a Bluetooth module of a home appliance using a remote controller. Since a protocol for controlling the remote controller is set in advance, the remote controller is operated according to the packet provided from the central controller, and thus the devices used in the home are controlled by a single terminal such as a wireless telephone or a mobile phone.

Bluetooth, remote control, wireless network,

Description

Home wireless communication network using Bluetooth {METHOD FOR EMBODYING TELECOMMUNICATION NETWORK IN HOME BY USE OF THE BLUETOOTH}             

1 is an exemplary configuration of a home wireless communication network according to an embodiment of the present invention

2 is a format diagram of a payload portion of a data packet used in a home wireless communication network according to an embodiment of the present invention.

3 is a configuration diagram and protocol reference model for implementing a wireless telephone in a home using a Bluetooth system

4 is a general message flow diagram when using a phone in a PSTN.

5 is a message flow diagram when a Bluetooth module is added when using a phone according to an embodiment of the present invention.

6 is a message flow diagram when a counterpart is busy when a Bluetooth module is added when using a telephone according to an embodiment of the present invention.

7 is a block diagram of a central control device of a wireless terminal such as a wireless telephone or a mobile phone according to an embodiment of the present invention.

8 is a flowchart of an initial setting process of the central control apparatus of FIG.

9 is a flowchart of a general operation process of the central control apparatus of FIG.

10 is a block diagram of a Bluetooth module on the side of a radiotelephone base station according to an embodiment of the present invention.

FIG. 11 is a flowchart of an initial setting process of a Bluetooth module of the radiotelephone base station of FIG.

12 is a flowchart of a general operation procedure of a Bluetooth module at the side of the radiotelephone base station of FIG.

Figure 13 is a block diagram of a Bluetooth module of a TV according to an embodiment of the present invention

14 is a flowchart of an initial setting process of the TV Bluetooth module of FIG.

15 is a block diagram of a Bluetooth module of the VTR according to an embodiment of the present invention

The present invention relates to a technology for implementing an indoor wireless communication network using Bluetooth, and more particularly, to a method for controlling a telephone or home appliance used in a home using a single terminal (phone or mobile phone) using Bluetooth.

In recent years, the wireless communications and computer industries have realized that low cost, low power wireless devices or wireless links are indeed possible. Such wireless communication provides a basis for the elimination of complicated connection cables between office devices and communication between devices, which emphasizes the compactness and portability, in accordance with recent development trends.

Various studies have been conducted on this, and a professional code, namely "Bluetooth", has been defined by Ericsson. The goal of Bluetooth is to provide mobility and convenience services for business users due to the small, short-range radio. Bluetooth has defined technical characteristics that optimize the usage model of portable computers and communication devices. Bluetooth is specifically designed to provide low cost, robustness, efficiency, high capacity, especially voice and data networking.

Such Bluetooth can be applied to various home appliances. In applying the Bluetooth to various home appliances in the home, a control device such as a remote controller provided in each of the home appliances may be integrated into one.

Accordingly, an object of the present invention is to provide a method for implementing an indoor wireless communication network using Bluetooth, and in particular, to provide a method for controlling devices used in a home with a single terminal such as a wireless telephone or a mobile phone.

In order to achieve the above object, the present invention provides a method for implementing an indoor wireless communication network using Bluetooth, by setting one Bluetooth module of the indoor wireless terminal as a central control device to preset protocols and packets for wireless telephone and remote control. A protocol for controlling a remote controller is set in advance in a Bluetooth module of a home appliance using a remote controller to perform a remote controller operation according to a packet provided from the central controller.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, specific details such as specific components are shown, which are provided to help a more general understanding of the present invention, and it is understood that these specific details may be changed or changed within the scope of the present invention. It is self-evident to those of ordinary knowledge in Esau.

The present invention is composed of one terminal such as a wireless telephone or a mobile phone operating as a central control device, a TV, a VTR, a wireless telephone base station and the like. Each device has a built-in or connected Bluetooth module, the Bluetooth module of the terminal acting as a central control device operates as a master and the rest as a slave.

1 shows an example of a configuration of an indoor wireless communication network. Referring to Fig. 1, a wireless terminal (wireless telephone, mobile phone) 10, printer 11, PC 12, wireless telephone base station 13, VTR 14, TV 15, lighting device 16 The Bluetooth modules BT 10a, 11a, 12a, 13a, 14a, 15a, and 16a are respectively installed in the. The communication between the Bluetooth module, each device, the Bluetooth module, and the Bluetooth module follows the Bluetooth standard, which is a patent application number 9906161 (name: short-range wireless communication method using Bluetooth) and a patent application number filed by the applicant of the present application. It is as disclosed in (9906162) (name: a method for checking the device name of the Bluetooth system).

The present invention proposes a protocol and a control method of a Bluetooth module that enables the use of a Bluetooth module and a radiotelephone in a TV, a VTR, and the like used as a remote controller.

Six packet type fields are reserved in the Bluetooth standard ver 0.8. Among them, "0111" is used as a packet form for remote control (name: Remote Control). In addition, the contents of the payload when the packet type is the remote control are as shown in FIG.

Referring to FIG. 2, the payload portion includes a 1 byte payload header, a payload body variable from 0 to 17 bytes, and a 2 byte cyclic redundancy check (CRC). . The 3-bit menu area may be set to, for example, "000" as a TV, "001" as a VTR, "010" as audio, "100" as a lighting device, or the like. In this case, the 5-bit reserved area may be used as an area for distinguishing lighting devices.

The payload body has a different meaning depending on the menu area of the payload header. CRC 2 bytes use the same method used in the Bluetooth specification (ver 0.8). The payload of 20 bytes is transmitted and received wirelessly through 2/3 forward error correction (FEC) and whitening procedures as in the Bluetooth specification.

The principle of the remote control is similar to that of the TV, the VTR, and the audio. The payload body is made up of one byte of submenu and the corresponding parameters. For example, if the submenu is "0x00", the channel number, "0x01", the sound, "0x02", the screen, and "0x03" can be set to mean multiple voices. The variable of may be set to 1 byte.

Currently, the Bluetooth specification version 0.8 has a telephony control protocol with only a name and no content. Therefore, the present invention proposes the following protocol. The configuration diagram and protocol reference model when a wireless telephone is implemented in a home using a Bluetooth system are illustrated in FIG. 3.

Referring to FIG. 3, a general wired telephone 31 and a Bluetooth wireless telephone base station 32 communicate with each other by wire in a switch 30, and the Bluetooth wireless telephone base station 32 and a wireless terminal 10 communicate with a Bluetooth module 32a,. Communicate wirelessly via 10a). The landline telephone 31 is equipped with a Public Switched Telephone Network (PSTN) protocol (B), and the switchboard 30 includes a baseband, an asynchronous connection leg (ACL), a synchronous connection oriented (SCO), and an LMP (LMP). Link Manager Protocol (LCP), Logical Link Control and Adaptation Protocol (L2CAP), voice (voice), Internet Protocol (IP), RF / COMM, and Telephony Control Protocol (TCP) are provided. The radiotelephone base station 32 side is equipped with a PSTN protocol, a Bluetooth physical layer, a baseband, an L2CAP, an LMP, and a telephony control protocol, as shown in C. The radio terminal 10 side is equipped with a Bluetooth physical layer, baseband, LMP, L2CAP, telephone control protocol as shown in D.

4 is a general message flow diagram when using a phone in a PSTN. 4 (a) shows a normal call setup and release procedure. If user A hooks off to the exchange, the exchange sends a dialtone to user A. When user A sends a digit (DTMF) to the exchange, the exchange rings to the destination user B of that digit and sends a ringback tone to user A. When user B hooks off, a connection is established between users and a call is made. When either user A or user B hooks on, the connection is subsequently disconnected.

4B illustrates a case where the other party is busy. If user A hooks off to the exchange, the exchange sends a dialtone to user A. When user A sends a digit to the exchange, the exchange verifies that the destination user B of that digit is busy and sends the busy tone to user A. User A then hooks on.

5 shows a message flow when a Bluetooth module is added. 5 (a) shows a normal call setup and release procedure in the case of an outgoing call. When a wireless terminal makes a connection request (called a "ConnectionRequest" packet) to a Bluetooth wireless telephone base station, the wireless telephone base station hooks off to the exchange. The exchange will dial tone to the radiotelephone base station and the radiotelephone base station will notify the radio terminal of the dialtone reception ("DialtoneReceived" packet). After entering the telephone number in the wireless terminal, the digit signal ("DigitSignal" packet) is sent to the wireless telephone base station. The radiotelephone base station sends a digit (DTMF) signal to the exchange and the exchange sends a ringback tone to the radiotelephone base station. Thereafter, the radiotelephone base station notifies the radio terminal of the access permission ("ConnectionAcceptIndication" packet), and then a SCO connection procedure is established between the radio terminal and the radiotelephone base station to perform a call. After that, when the wireless terminal makes a disconnect request ("DisconnectionRequest" packet) to the wireless telephone base station, the wireless telephone base station notifies the switch on to the switchboard, and then the SCO disconnection procedure between the wireless terminal and the wireless telephone base station is performed.

5 (b) shows a normal call setup and release procedure in the case of an incoming call. When ringing from the exchange to the Bluetooth radiotelephone base station, the radiotelephone base station notifies the radio terminal of the connection request ("ConnectionRequestIndication" packet). The radio terminal is alerting, and the radio terminal makes a connection accept request (" ConnectionAcceptRequest ") to the radio telephone base station, which informs the switch off of the hook. Thereafter, the SCO connection procedure is established between the radiotelephone base station and the radio terminal to conduct a call. Then, when the radio terminal releases the request for disconnection to the radiotelephone base station, the radiotelephone base station notifies the switch on to the exchange, and then the SCO disconnection procedure between the radio terminal and the radiotelephone base station is performed.

6 is a message flow diagram when the other party is busy when the outgoing call is made. When a connection request is made from a wireless terminal to a Bluetooth wireless telephone base station, the wireless telephone base station hooks off to the exchange. The exchange will dial tone to the radiotelephone base station and the radiotelephone base station shall notify the radio terminal of the dial tone reception. After entering the telephone number in the wireless terminal, the digit signal is sent to the wireless telephone base station. When the radiotelephone base station sends a DTMF signal to the exchange, the exchange confirms that the other party is busy and sends the busy tone to the radiotelephone base station. Thereafter, the radiotelephone base station notifies the wireless terminal of the busy tone reception (“BusytoneReceived” packet), and then, when the radio terminal is disconnected from the radio terminal, the radiotelephone base station notifies the switch-on of the switch.

7 is a block diagram of a central control device of a wireless terminal such as a wireless telephone or a mobile phone. Referring to FIG. 7, the central controller generally controls the user interface unit 74 that receives a user's command, the RF transmitter 71, the RF receiver 72, the baseband processor 70, and the central control unit. It consists of a main control 73.

8 is a flowchart of an initial setting process of the central control apparatus of FIG. Referring to FIG. 8, when the initial setting is started, first, all controllable Bluetooth devices are shown to the user through an inquiry operation in step 82. Thereafter, when receiving a control command from the user in step 84, the Bluetooth device stores the clock information of the central controller through the baseband access procedure with the corresponding Bluetooth device. This procedure is repeated until the user stops.

9 is a flowchart of a general operation process of the central controller. Referring to FIG. 9, upon power-on, a baseband connection is first established with all Bluetooth devices stored in step 91 (set initially by the user). After all baseband access settings are completed in step 92, POLL packets are periodically transmitted to all Bluetooth devices. Thereafter, in step 93, it is determined whether or not an input of a menu button to be controlled by the user has been received. In step 95, a packet corresponding to the button pressed by the user is created and transmitted to the corresponding Bluetooth device. At this time, POLL packet should be transmitted to other Bluetooth devices periodically. Thereafter, the process proceeds to step 92 and the process is repeated.

In step 94, it is determined whether the access request notification packet is received from the radiotelephone base station. If it is received, the process proceeds to step 96. Otherwise, the process proceeds to step 92 and the process is repeated. In step 96, a procedure corresponding to the telephone control protocol is performed. At this time, POLL packet should be transmitted to other Bluetooth devices periodically. Thereafter, in step 97, the call release procedure is performed in the telephone control protocol. In step 92, the procedure is repeated.

Fig. 10 is a schematic block diagram of a Bluetooth module at the radiotelephone base station side. Referring to FIG. 10, the Bluetooth module of the radiotelephone base station collectively includes a user interface unit 104 for receiving a user's command, an RF transmitter 71, an RF receiver 72, a baseband processor 101, and a central part. It is composed of a main control unit 103 to control and a PSTN interface unit 102 in charge of the PSTN interface.

FIG. 11 is a flowchart of an initial setting process of the Bluetooth module of the radiotelephone base station of FIG. Referring to FIG. 11, when the initial setting is started, the central controller notifies the address of its Bluetooth device through an inquiry scan operation in step 111. Subsequently, in step 113, the baseband access procedure is performed with the central controller through the page scan procedure, the name of the controller is informed of the name, and the clock information of the central controller is stored in the inactive memory.

12 is a general operational flow diagram of the radiotelephone base station of FIG. Referring to FIG. 12, when the power is turned on, a baseband connection is established with the central controller through the page scan procedure in step 121. After the baseband connection is set in step 122, the central controller receives the POLL packet periodically transmitted. Thereafter, in step 123, if it is determined whether the access request packet is received, the process proceeds to step 125, otherwise it proceeds to step 124. In step 125, a procedure corresponding to an outgoing call is performed. Thereafter, in step 126, the call release procedure is performed in the telephone control protocol, and the process returns to step 122 to repeat the above process.

In step 124, if there is a ringing signal from the exchange, it is checked. If there is no ringing signal, the flow proceeds to step 122, and the process is repeated. In step 127, the access request notification signal is transmitted to the central controller, and the procedure corresponding to the telephone control protocol is performed. At this time, POLL packet should be transmitted to other Bluetooth devices periodically. Thereafter, the process proceeds to step 128, the call release procedure is performed in the telephone control protocol, and the process returns to step 122 to repeat the above process.

13 is a block diagram of a Bluetooth module of a TV. Referring to FIG. 13, the Bluetooth module of the TV controls the RF transmitter 131, the RF receiver 132, the baseband processor 130, a main control unit 133 which is collectively controlled at the center, and a TV. It consists of a TV control unit 134.

FIG. 14 is a flowchart illustrating an initial setting process of the TV Bluetooth module of FIG. 13. Referring to FIG. 14, when the power is turned on, a baseband connection is established with the central controller through an inquiry scan operation in operation 140. After the baseband connection is set in step 141, the central controller receives the POLL packet periodically transmitted. Thereafter, in step 142, the remote control packet is received to control the TV.

15 is a block diagram of a Bluetooth module of the VTR. Referring to FIG. 15, the Bluetooth module of the VTR controls the RF transmitter 151, the RF receiver 152, the baseband processor 150, a main control unit 153 which is collectively controlled at the center, and a VTR. It consists of a VTR control unit 154. Its operation and configuration is similar to that of the TV.

By using the above configuration and process, an indoor wireless communication network using Bluetooth according to a feature of the present invention may be implemented. Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but by the equivalents of the claims and claims.

As described above, the present invention provides a method for implementing a wireless home communication network using Bluetooth, by setting a Bluetooth module of one of the home wireless terminals as a central control device, pre-setting protocols and packets for wireless telephone and remote control, and using a remote controller. Since the protocol for remote control is set in advance in the Bluetooth module of the home appliance to perform the remote control operation according to the packet provided from the central controller, the devices used in the home as a terminal such as a wireless telephone or a mobile phone, You can control it.

Claims (6)

In the home wireless communication network implementation method using Bluetooth, Setting a Bluetooth module of one of the wireless terminals in the home as a central control device to preset protocols and packets for wireless telephone and remote control, and to perform wireless telephone and remote control operations; And pre-setting a protocol for controlling a remote controller in a Bluetooth module of a home appliance using a remote controller and performing a remote controller operation according to a packet provided from the central controller. The payload header of claim 1, wherein the packet for controlling the remote controller is set in a form for the remote controller control in which a packet type region reserved in the Bluetooth standard is preset, and includes a menu region for designating a type of a device; And a payload body for designating a sub-menu according to the home wireless communication network. The method of claim 1, wherein the performing of the remote controller operation of the central controller comprises: establishing a baseband connection with a Bluetooth module of another home appliance, periodically transmitting a POLL packet to a connected Bluetooth module, and controlling from a user; Determining whether an input of a menu button to be received is received, and when receiving the input of the menu button, making a remote control packet corresponding to a button pressed by a user and transmitting the same to a corresponding Bluetooth module. Wireless network implementation method, The method of claim 1, wherein the performing of the wireless telephone operation of the central controller comprises determining whether a connection request notification packet is received from a Bluetooth wireless telephone base station, and when the connection request notification packet is received, corresponds to a preset telephone control protocol. An indoor wireless communication network implementation method comprising the step of performing a procedure. 5. The method of claim 4, wherein the wireless telephone base station establishes a baseband connection with the central controller through a page scan procedure, receives a POLL packet periodically transmitted by the central controller, and a connection request packet. And receiving a connection request packet and performing a procedure corresponding to an outgoing call when receiving the access request packet. Thereafter, in step 126, performing a call release procedure in a telephone control protocol, confirming whether a ringing signal is present from the exchange, and transmitting a connection request notification signal to the central controller when the ringing signal exists. And performing a procedure corresponding to a telephone control protocol. The method of claim 1, wherein the home appliance using the remote controller performs a remote controller operation, comprising: establishing a baseband connection with the central controller through an inquiry scan operation; and a POLL periodically transmitted by the central controller. And receiving a packet and controlling a device by receiving a remote control packet from the central controller.

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