KR100365927B1 - Apparatus for separated terminal equipped transmission and receiving function of characters in wireless local loop system - Google Patents

Abstract

The present invention is to provide a separate subscriber station of a wireless subscriber network having a text message transmission and reception function that enables the separate subscriber station wireless terminal network to receive and process analog data and digital data. Performing analog data / digital data conversion between the digital input / output unit for inputting / outputting digital data, an analog interface unit for interfacing the analog data input / output with a wired telephone having a character display means, and the analog interface unit and the control unit. A data input / output unit having a codec unit for the data; A control unit controlling storage and transmission / reception of data input / output by the data input / output unit; Under the control of the control unit is configured with a transceiver for exchanging a radio frequency signal with the base station, the conventional terminal, such as a wired telephone and a computer to enable the transmission and reception of text messages through the public telephone network to complement the voice call.

Description

Apparatus for separated terminal equipped transmission and receiving function of characters in wireless local loop system}

The present invention relates to a terminal of a wireless subscriber network, and in particular, a separate wireless subscriber network terminal processes analog data and digital data, and connects a wired telephone and a computer, which does not have a function of transmitting and receiving text messages, to a character through a public telephone network. The present invention relates to a detachable terminal device of a wireless subscriber network having a text message transmission / reception function for enabling transmission and reception of messages.

Hereinafter, a communication method between a subscriber station and a base station in a general communication network will be described.

First, Figure 1 is a block diagram of a general communication network.

As shown in FIG. 1, the communication network includes: a terminal unit 11 for performing demodulation and demodulation on an audio signal at a subscriber side and an electrical signal at a base station side; An exchange unit (13) (14) for transmitting a signal transmitted from the terminal unit (11) to a specific counterpart station; It consists of a public telephone network (15) which provides a signal transmission path for reaching a counterpart station with a signal transmitted from the exchange unit (13) (14).

At this time, the configuration is a network configuration of the own station that emits a transmission signal, and this configuration is symmetrically applied to the other station. That is, the signal arriving at the other station is reversed in the process of transmitting the signal from the own station to reach the terminal of the receiving subscriber.

The operation of the terminal unit 11 and the exchange unit 13, 14 in the communication network configured as described above is as follows.

In order to use a wired / wireless communication service, a subscriber terminal 11 is provided with a terminal suitable for each communication method. Generally, terminals used for wireless communication include a mobile phone 11A and a wireless subscriber network terminal 11B and 11C. Terminals used for wired communication include a wired telephone 11D and a computer 11E. In the case of the wireless subscriber network terminal provided in the terminal units 11 and 21, the terminal 11 and the terminal 11 may be classified into an integrated terminal 11B and a separate terminal 11C.

The subscriber can access the specific subscriber of the opposite station by using the terminal. That is, the signal transmitted wirelessly from the mobile phone and the wireless subscriber network terminal 11B (11C) is transmitted to the other station through the wireless exchanger 13, and the signal transmitted from the wired telephone 11D and the computer 11E is wired. It is transmitted to the opposite station through the exchange 14. The transmission signal of the own station is transmitted to the counter station through the public telephone network 15 to reach the terminal 21 of the subscriber to be received, thereby establishing a connection between the subscriber and the subscriber and performing a communication service.

In this case, the wired telephone 11B and the computer 11E may use a wireless communication network in addition to the wired communication network for data transmission and reception. That is, the data generated by the wired telephone 11B and the computer 11E can be wirelessly transmitted to the radio switch 13 of the base station via the integrated terminal 11B or the separated terminal 11C.

In addition, as the communication service is diversified, the terminal units 11 and 21 are required to process text messages as well as voice signals. In response to these demands, the mobile phone 11A and the integrated terminal 11B have a liquid crystal display device, so that text messages can be transmitted and received. Therefore, the text message can be exchanged between the mobile phone 11A and the integrated terminal 11B.

As described above, the mobile phone 11A and the integrated terminal 11B having the function of transmitting and receiving a text message store the message in a memory using various media capable of processing the text message, and then transmit the message to the other terminal connected to the call. After connecting with the other party, the message transmitted from the other party can be received, stored and displayed.

By the way, the conventional wired telephone 11D and the detachable terminal 11C generally do not have a liquid crystal display and have no function for transmitting and receiving text messages. Therefore, the conventional landline telephone 11D and the detachable terminal 11C, which are manufactured without a memory for storing text messages and a protocol for recognition of text messages, are equipped with a mobile phone (even if a liquid crystal display device is provided). 11A) and text message exchange with the integrated terminal 11B cannot be performed.

On the other hand, the Private Automatic Branch Exchange (PABX) may transmit the Caller ID of the transmitting side to the receiving side through software programming. In this case, since the terminal may display the caller ID transmitted from the private automatic exchange with a liquid crystal display device, it is possible to implement the function of transmitting and receiving text messages through software programming.

In this case, the text message transmission / reception function provides only a function of receiving and displaying a text message transmitted from a private automatic exchange, and thus, as in the case of the mobile phone 11A and the integrated terminal 11B, the terminal may transmit and receive text messages on its own. none.

As described above, the detachable terminal of the wireless subscriber network cannot exchange text messages with the mobile phone 11A and the integrated terminal 11B. In addition, in the case of the private automatic switching network, since there is no standard or protocol for information transmission other than the caller ID, the text message transmission / reception function cannot be implemented, and thus the width of the communication service is limited.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to allow a separate wireless subscriber network terminal to receive and process analog data and digital data, thereby transmitting and receiving its own text message. It is to provide a separate terminal device of a wireless subscriber network having a text message transmission and reception function to be able to transmit and receive text messages through a public telephone network by connecting a conventional wired telephone and a computer without a function.

In order to achieve the above object, a separate terminal device of a wireless subscriber network having a text message transmission / reception function according to the present invention includes a digital input / output unit for inputting / outputting digital data to and from a computer, and a wired line having a character display means. A data input / output unit including an analog interface unit for interfacing analog data input and output to a telephone, and a codec unit for performing analog data / digital data conversion between the analog interface unit and the control unit; A control unit controlling storage and transmission / reception of data input / output by the data input / output unit; Under the control of the control unit is characterized in that the technical configuration consisting of a transceiver for exchanging radio frequency signals with the base station.

1 is a block diagram of a general communication network,

Figure 2 is a block diagram of a separate terminal device of a wireless subscriber network with a text message transmission and reception function according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

31: terminal 32: data receiving unit

32A: Digital Receiver 32B: Analog Interface

32C: Codec 33: Control Unit

34: transceiver

Hereinafter, the configuration and operation of the present invention will be described in detail according to an embodiment of the present disclosure in accordance with the technical concept of a detachable terminal device of a wireless subscriber network having a text message transmission and reception function as described above.

First, Figure 2 is a block diagram of a separate terminal device of a wireless subscriber network with a text message transmission and reception function according to an embodiment of the present invention.

As shown in FIG. 2, a suitable embodiment of the present invention includes: a data input / output unit 32 for exchanging data with a terminal having a display function of a text message; A control unit 33 for controlling storage and transmission / reception of data input / output by the data input / output unit 32; Under the control of the control unit 33 consists of a transceiver 34 for exchanging radio frequency signals with the base station.

The data input / output unit 32 includes a digital input / output unit 32A for inputting / outputting digital data input / output to the computer 31A; An analog interface unit 32B for interfacing the analog data input and output to the wireline telephone 31B; It consists of a codec (Coder-Decorder) 32C which performs analog data / digital data conversion between the analog interface part 32B and the control part 33. As shown in FIG.

Referring to the operation of the device according to such a configuration as follows.

First, FIG. 2 shows a data processing flow when data is transmitted from a separate wireless subscriber network terminal, and the operation of receiving and processing data from the base station by the separate wireless subscriber network terminal is symmetrical thereto. Except that there is a difference in the direction of the data flow, the data transmission and reception operations will be equivalent. Therefore, the data transmission operation will be described with reference to FIG.

In the present embodiment, the terminal unit 31 is connected to the detachable wireless subscriber network terminal to perform data communication. The terminal unit 31 includes a wired telephone 31B with a liquid crystal display device, a computer 31A, and the like. In the case of the wired telephone 31B, the conventional home wired telephone used in the state without using a separate protocol for transmitting and receiving text messages is improved. A liquid crystal display (LCD) and a transmission / reception data for displaying text messages are improved. Memory or DSP (Digita Signal Processing) is further provided for the storage of characters and simple texts so that the storage and display functions can be realized.

Since the terminal unit 31 includes digital data storage and display functions, the terminal unit 31 may be connected to a separate type of wireless subscriber network terminal to transmit and receive text messages as well as voice messages.

Specifically, the data generated by the computer 31A is input to the digital input / output unit 32A through the RS-232C cable and transferred to the control unit 33. The text message input from the landline phone 31B may be a dial pad. The input text message is converted into analog data and input to the wireless subscriber network terminal. 32B) is converted into a digital signal by the codec 32C and then transmitted to the control unit 33.

The control unit 33 receives the digital data from the data input / output unit 32, which is irrespective of whether the terminal unit 31 that originally generated the data is a computer 31A or a wired telephone 31B. Do. The controller 33 stores the data received from the data input / output unit 32 and outputs the data to the transceiver 34. The transceiver 34 converts the data into a radio signal and transmits the data to the base station.

The data transmission operation according to the present embodiment has been described above. On the other hand, the data receiving operation in the present embodiment is performed by the data transmitted from the cellular phone or the integrated wireless subscriber network terminal is wirelessly transmitted through the exchange of the base station and received by the transceiver 34 of the separate wireless subscriber network terminal. The operation is performed in the inverse of the previously described data transmission operation.

The data receiving operation will be described in detail. First, the data received by the transceiver 34 is stored in the memory by the controller 33 and then transferred to the digital input / output unit 32A or the codec 32C. Since the control unit 33 outputs digital data, the digital input / output unit 32A transfers the digital data to the computer 31A through an RS-232C cable, and the data is displayed on a display device (eg, a monitor of the computer 31A). ), The subscriber's text message can be confirmed.

In receiving the text message of the landline telephone 31B, the landline telephone 31B is provided with a memory for temporarily storing the text message and an appropriate display device for displaying the text message so as to receive and process the text message. do. That is, the digital data output from the control unit 33 is converted into analog data by the codec 32C, and is output to the wired telephone 31B via the analog interface unit 32B. The landline telephone 31B stores the received data and displays the text message on the liquid crystal display device.

As such, the present invention implements a function for processing analog data and digital data in a separate type of wireless subscriber network terminal, so that even if a terminal does not have its own text message transmission / reception function such as a landline phone or a computer, It will be able to provide a transmission and reception function of.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the detachable terminal device of the wireless subscriber network having the text message transmission / reception function according to the present invention is easily connected to a terminal such as a wired telephone and a computer which does not have its own text message transmission / reception function. There is an effect that enables the transmission and reception of text messages through.

Due to the above effect, the subscriber can compensate for the voice call by transmitting a text message when the reception sensitivity of the terminal decreases while the identification of the voice call is degraded. You can send a message quickly and repeatedly.

Claims (2)

A digital input / output unit for inputting / outputting digital data to / from a computer, an analog interface unit for interfacing analog data input / output with a wired telephone having a character display means, and analog data / digital data conversion between the analog interface unit and the control unit A data input / output unit having a codec unit for performing the operation; A control unit controlling storage and transmission / reception of data input / output by the data input / output unit; And a transceiver for exchanging a radio frequency signal with a base station under the control of the controller. delete