KR100647724B1 - Mobile wireless private exchange device - Google Patents
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Abstract
본 발명은 무선통신망과 사설교환기를 결합한 다중 사용자용 통합 무선통신망 유무선 전화 교환장치에 관한 것으로 기존의 무선통신망에 사설교환기를 연결함으로써, 이동성을 가진 전화교환장치의 구축이 요구되는 지역에 CDMA, GSM, GPRS 또는 WCDMA의 무선통신망을 이용하여 다수의 사용자가 제한된 전화회선을 공유하여, 전화, 팩스전송, 데이터 통신용도 등을 위해 사용하도록 함으로써 전화회선 이용 효율을 제고하도록 하는 장치 및 방법에 관한 것이다.The present invention relates to a wired / wireless telephone exchange device for a multi-user integrated wireless communication network combining a wireless communication network and a private exchange. By connecting a private exchange to an existing wireless communication network, CDMA and GSM are required in an area where a mobile telephone exchange device needs to be constructed. By using a wireless communication network of GPRS or WCDMA, a plurality of users to share a limited telephone line, and to use for telephone, fax transmission, data communication, etc. apparatus and method for improving the telephone line utilization efficiency.
무선통신망, 사설교환기, PABX, CDMA, GSM, GPRS, WCDMAWireless network, private exchange, PABX, CDMA, GSM, GPRS, WCDMA
Description
도 1은 종래 사설교환장치를 나타낸 구성도.1 is a block diagram showing a conventional private exchange device.
도 2는 본 발명에 따른 이동형 무선 사설교환장치를 나타낸 구성도.Figure 2 is a block diagram showing a mobile wireless private exchange device according to the present invention.
본 발명은 무선 가입자 회선(Wireless Local Loop ; WLL)과 사설교환기를 결합한 다중 사용자용 이동형 무선 사설교환장치 및 방법에 관한 것이다. 무선 가입자 회선이란 전화국과 가입자 단말 사이의 회선을 기존의 유선 대신에 무선시스템을 사용하여 구성하는 방식이다. 상기 기술은 1970년대 초 미국의 AT&T 벨 연구소에서 농어촌 지역과 같이 인구밀도가 희박한 지역에 전화를 가설할 경우 소요되는 막대한 비용을 줄이기 위해 개발되었으나 무선 주파수의 확보가 쉽지 않았고, 안테나와 무선 송수신장치의 제조 및 설치비용이 과다하여 상용화 단계에 이르지 못하였으나, 전자 통신기술의 발전과 함께 경제성 있는 제품이 개발됨에 따라 각국의 통신 사업자와 이용자들의 관심이 높아지고 있었다.The present invention relates to a multi-user mobile wireless private switching device and method combining a wireless local loop (WLL) and a private exchange. A wireless subscriber line is a method of configuring a line between a telephone station and a subscriber station by using a wireless system instead of the existing wire. The technology was developed at the AT & T Bell Labs in the early 1970s to reduce the enormous cost of making telephone calls in sparsely populated areas such as rural areas, but it was not easy to secure radio frequencies. Due to the excessive manufacturing and installation costs, the commercialization stage was not reached. However, with the development of electronic communication technology and economical products, interests of telecommunication operators and users in each country were increasing.
전화국과 가입자간의 무선 선로 시스템을 구축하는 방법에는 통신 위성, 고정 마이크로파, 셀룰러 기술, 코드리스 기술 등을 사용하는 방법이 있다. 국토의 면적이 넓은 국가, 도서국가, 인구밀도가 적은 국가 등에서 일일이 유선 선로를 설치하는 것이 경제적으로 비효율적이고 또한 전화의 보급을 저해하는 요인으로 나타나고 있어 최근 경제성 있는 기술의 개발로 수요가 증가하고 있다. 그러나 무선을 통해 전화국과 연결된 무선통신망은 음성 전화기, 팩스기능 모듈, 컴퓨터 데이터 통신용 회로 등과 결합하여 단일 사용자를 위하여 음성통화, 팩스 송/수신, 컴퓨터 데이터 통신 등의 목적으로 사용할 수 있으며 다수의 사용자가 한대의 무선망을 공유하여 사용할 수 없는 단점이 나타나게 되었다.As a method of constructing a wireless line system between a telephone station and a subscriber, there are methods using a communication satellite, fixed microwave, cellular technology, and cordless technology. In countries with large land areas, island countries, and countries with low population densities, the installation of fixed-line tracks is economically inefficient and impedes the spread of telephones. Recently, demand for economic technology has increased. . However, the wireless communication network connected to the telephone company through the wireless can be used for the purpose of voice call, fax transmission / reception, computer data communication, etc. for a single user by combining with voice telephone, fax function module, and computer data communication circuit. The drawback is that one wireless network cannot be shared and used.
따라서 본 발명의 목적은 현재 단일 사용자용으로만 사용되는 무선통신망과 사설교환기를 하나의 새로운 시스템으로 통합함으로써, 한정된 수의 무선통신망 전화회선을 여러 명의 사용자가 음성통화, 팩스전송, 데이터 통신 등의 목적으로 효율적으로 사용할 수 있도록 하며, 현재 분리되어 사용되는 두 장치의 장점을 결합하여 새로운 목적의 용도를 창출하고자 한다.
Accordingly, an object of the present invention is to integrate a wireless communication network and a private exchange currently used only for a single user into one new system. It aims to be used efficiently for the purpose and combines the advantages of the two devices that are currently used separately to create a new purpose.
본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로, 기존의 CDMA, GSM, GPRS, WCDMA와 같은 무선통신망과 연결하여 사설교환기(PABX) 기능을 활용하여 내외부 전화 사용확률에 따라 incoming/outgoing 회선의 비율을 최적화하고, 상기 사설교환기(PABX) 내부망 구성 시 유선망 이외에 근거리무선통신기능을 추가로 내부 내선 설치로 인한 투자비용을 최소화하고, 편리성을 극대화하고자 하는 것이다.The present invention has been made to solve the above problems, by connecting to the existing wireless communication networks such as CDMA, GSM, GPRS, WCDMA, utilizing the private exchange (PABX) function incoming / outgoing line according to the internal and external telephone use probability In order to optimize the ratio of the internal network, and to configure the private network (PABX) internal network in addition to the wired network to minimize the investment costs due to the installation of the internal extension to maximize the convenience.
상기 사설교환기는 국선과 구내전화기 또는 구내전화기 상호간의 회선을 교환 접속할 수 있는 접속장치로서 국선중계대, 신호기 및 교환기능의 일부를 부여하기 위하여 별도로 부가하는 부속 설비를 포함한 장치를 말한다. 종래 사설교환기(PABX)에 무선통신망과의 통신 모듈 및 내부 근거리 무선통신을 활용하여 공사현장사무소 등 이동성이 많은 사무지역에 대해 낮은 투자비로 기존 사무공간에서의 통신효율을 증대할 수 있다.The private exchange is a connection device capable of exchanging a line between a trunk line and a local telephone or a local telephone, and refers to a device including a trunk line relay, a signaling device, and additional facilities additionally added to grant a part of the exchange function. By using a communication module with a wireless communication network and an internal short-range wireless communication in a conventional private exchange (PABX), communication efficiency in an existing office space can be increased with a low investment cost for a mobile office area such as a construction site office.
도 2를 통해 본 발명에 따른 이동형 무선 사설교환장치에 대해 상세히 살펴보면, 기존 핸드폰 망을 이용할 수 있는 CDMA, GSM, GPRS, WCDMA와 같은 무선통신망(100)과 연계하여 유무선 단말기가 근거리 무선통신이 자유롭게 이루어질 수 있도록 무선 송수신부(200)와 상기 무선통신망(100)과 무선 송수신부(200)간의 통신을 전달해 주는 이동형 무선 사설교환기(300)로 구성된다.Referring to the mobile wireless private switching device according to the present invention in detail with reference to Figure 2, the wired and wireless terminal is free to short-range wireless communication in connection with a
상기 이동형 무선 사설교환기(300)는 무선통신망을 이용할 수 있도록 하는 무선통신망 모듈과;The mobile wireless
종래의 사설교환기와 동일한 구내 유선단말기간의 통신을 담당하는 사설교환기 모듈과;A private exchange module that is responsible for communication in the same wired terminal period as a conventional private exchange;
근거리 무선통신에서 무선단말기간의 통신을 담당하는 무선송수신 모듈과;A wireless transmission / reception module responsible for communication in a wireless terminal period in short-range wireless communication;
무선 채널을 통신 매체로 셀룰러 이동 전화나 PCS와 동일한 망을 공동으로 사용할 수 있으면서도 핸드셋, 노트북, PDA 등 다양한 휴대인터넷 단말기를 이용하여 정지 및 이동중에서도 고속으로 무선 인터넷 접속이 가능한 서비스를 제공하는 휴대인터넷 모듈로 구성되고, 상기 휴대인터넷 모듈은 OFMDA/TDD(Orthogonal Frequency Division Multiple Access/Time Division Duplex) 방식의 광대역 무선전송기술을 사용하여 상하향 비대칭 전송특성을 갖는 IP기반 무선 데이터 시스템을 이루며, 동일한 주파수 대역에서 시간적으로 상향, 하향을 교대로 배정하는 양방향 전송방식 적용한 것을 특징으로 한다.A mobile Internet that provides high-speed wireless Internet access even when stationary and mobile by using various mobile Internet terminals such as handsets, notebooks, and PDAs, while using the same network as a cellular mobile phone or PCS as a communication medium. The mobile Internet module is an IP-based wireless data system having up-down asymmetric transmission characteristics using broadband wireless transmission technology of OFMDA / TDD (Orthogonal Frequency Division Multiple Access / Time Division Duplex) method, and the same frequency band. In the bidirectional transmission method that alternately assigns up, down in time is characterized in that applied.
상기와 같이 구성된 이동형 무선 사설교환장치를 이용한 통신방법은 현장의 유무선단말기 및 데이터 통신 단말기로 통신을 하는 제1단계와;The communication method using the mobile wireless private switching device configured as described above comprises a first step of communicating to a wired / wireless terminal and a data communication terminal in a field;
상기 제1단계에서 단말기가 통신을 시도하면 무선통신망을 이용할 수 있도록 하는 무선통신망 모듈, 구내 유선단말기간의 통신을 담당하는 사설교환기 모듈, 근거리 무선통신에서 무선단말기간의 통신을 담당하는 무선송수신 모듈, 다양한 휴대인터넷 단말기를 이용하여 정지 및 이동중에서도 고속으로 무선 인터넷 접속이 가능한 서비스를 제공하는 휴대인터넷 모듈로 구성된 이동형 무선 사설교환기에 유무 선으로 송수신하는 제2단계와;In the first step, when a terminal attempts to communicate, a wireless communication network module for using a wireless communication network, a private switch module for communication in a wired terminal period in a premises, a wireless transmission / reception module for communication in a wireless terminal period in a short range wireless communication, and various A second step of transmitting / receiving wired / wirelessly to a mobile wireless private exchange consisting of a portable internet module that provides a wireless internet connection service at high speed even when stopped and moving by using a portable internet terminal;
상기 제2단계에서 이동형 무선 사설교환기는 기존 핸드폰 망을 이용할 수 있는 무선통신망에 접속하여 유무선단말기 및 데이터 통신 단말기에서 전달된 통신을 목적지로 송수신하는 제3단계로 이루어지는 것을 특징으로 한다.In the second step, the mobile wireless private exchange comprises a third step of transmitting and receiving the communication transmitted from the wired / wireless terminal and the data communication terminal to the destination by accessing a wireless communication network that can use the existing cellular network.
상술한 바와 같이 본 발명에 따른 바람직한 일실시예를 설명하였지만, 본 발명은 상기한 실시예에 한정되지 않고, 이하의 특허청구의 범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.As described above, a preferred embodiment according to the present invention has been described, but the present invention is not limited to the above-described embodiment, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the following claims. Anyone skilled in the art will have the technical spirit of the present invention to the extent that various modifications can be made.
본 발명은 단일 사용자용의 무선통신망에 사설교환장치 기능을 결합함으로써, 무선으로 연결된 가입자 회선을 여러 사용자가 공유하여 무선통신망이 가지고 있는 음성통화, 팩스 송/수신, 데이터 통신 등의 기능을 이용할 수 있도록 함으로써 한정된 자원을 효율적으로 이용하여 가입자에게는 통신비용의 절감을 전화 사업자에게는 유선선로 시스템 구성비용 및 전화의 보급 확대를 통한 가입자 증가와 이로 인한 수익증대로 보다 큰 사업기회가 제공되는 것이다.According to the present invention, by combining a private switching device function with a wireless communication network for a single user, multiple users can share a wirelessly connected subscriber line to use functions such as voice call, fax transmission / reception, and data communication that the wireless communication network has. By effectively using limited resources, subscribers can reduce communication costs, and telephone operators will be provided with greater business opportunities due to increased subscribers through wireline system configuration costs and the spread of telephones.
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