KR930024524A

KR930024524A - Data communication system and method between wireless PBX main unit and access device

Info

Publication number: KR930024524A
Application number: KR1019920008425A
Authority: KR
Inventors: 정광모
Original assignee: 정장호; 금성정보통신 주식회사
Filing date: 1992-05-19
Publication date: 1993-12-22

Abstract

본 발명은 무선 PBX본체와 접속장치간의 데이타 통신 시스템 및 그 방법에 관한 것으로, 기존의ISDN기본인터페이스 형식인2B+D채널형식에서 본체에 디지탈 스위치 기능을 부가하여 4개의 B채널에 대하여 제어신호 정보를 전송하는 D채널이 접속되는 4B+D의 채널 인터페이스형식으로 변환함으로써 무선 PBX시스템에서 복수의 ISDN망가입자를 인터페이스 시킴에 있어 1개의 HDLC를 구비하여 4개의 B채널에 대한 신호정보처리가 가능하여 다수개의 HDLC의 구비로 인한 비용을 절감할 수 있는 효과도 있다.The present invention relates to a data communication system and method between a wireless PBX main body and a connection device. The present invention provides control signal information for four B channels by adding a digital switch function to a main body in a 2B + D channel format, which is an existing ISDN basic interface format. In order to interface multiple ISDN network subscribers in a wireless PBX system by converting into a channel interface type of 4B + D to which a D-channel transmitting the D-channel is connected, it is possible to process signal information on four B-channels with one HDLC. There is also an effect to reduce the cost of having a plurality of HDLC.

Description

Data communication system and method between wireless PBX main body and access device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 의한 무선 PBX본체와 접속장치간의 데이타통신 방법을 설명하기 위한 시스템 블럭도, 제3도는 제2도에 따른 시스템 본체와 접속장치간의 채널별 데이타 흐름도, 제4도는 제2도 및 제3도에 따른 D채널 데이타 형태의 구성도.FIG. 2 is a system block diagram illustrating a data communication method between a wireless PBX main body and a connection device according to the present invention. FIG. 3 is a flow chart for each channel between the system main body and the connection device according to FIG. 2, and FIG. And a configuration diagram of a D channel data type according to FIG.

Claims

In a data communication system between a wireless PBX main body and a connection device, the main body includes an HDLC unit 14 for generating or separating D-channel data for transmitting control signal information for data transmitted on a B-channel, and a D-channel. The digital switch section 13 for switching the B channel in accordance with the frame synchronization signal, and changes the B channel and D channel data. Demodulate the song. A time for allocating the respective timeslots in accordance with the frame synchronization signal for the B channel received in the combo circuits 22, 23, 24, and 25 of the connection apparatus, having a DINC unit 15, 16 for receiving. And a slot assignment circuit (20, 21) for connecting.

In a data communication system between a wireless PBX main body and a connection device, a digital switch function is added to the main body to perform the same function as a plurality of HDLCs operate with only one HDLC, and the connection device receives the B channel data received from the main body. A data communication system between a wireless PBX main body and an access device, wherein each time slot is assigned to the receiver to eliminate mutual interference with adjacent channels.

※ Note: The disclosure is based on the initial application.