KR0135916B1 - Apparatus for maintaining and repairing the node with redundancy and matching apparatus of a trunk device - Google Patents

Abstract

The present invention relates to a redundant node maintenance device and a matching device for relay network devices, wherein the redundant node maintenance device in the mobile communication system performs initialization and maintenance functions of a plurality of relay devices. First and second node maintenance apparatuses 100 and 101 connected to each other; A plurality of relay line devices matched with the first and second node maintenance devices (100, 101) in parallel data lines / address lines; The redundant first and second node maintenance devices (100, 101) is characterized in that it comprises a cable (110, 111) connected to access a plurality of relay line devices connected to the other side, inside the mobile communication system Instead of having its own maintenance function inside each relay line device that transmits and receives HDLC frames from a node that provides a communication path between processors, a number of relay device management functions are implemented in a redundant node maintenance device. The elimination of control circuits and peripheral circuits to implement maintenance functions in the trunk line device simplifies the internal functions of the trunk line board, and has economical advantages and simplifies the maintenance function of the trunk line device.

Description

Matching device of redundant node maintenance unit and trunk line unit

1 is a matching configuration diagram of a redundant node maintenance device and a trunk line device according to the present invention.

2 is a functional block diagram of a matching device according to the present invention.

3 is a detailed view of a buffer control circuit and a buff.

* Explanation of symbols for main parts of the drawings

201: Integrated Multiprotocol Processor

202: relay device mounting and mounting detection unit

203: buffer control circuit

204: address decoder

205: data / address buffer

206: interrupt processing unit

207: memory

The present invention relates to a matched device of a redundant node maintenance device and a trunk line device for the redundant node maintenance device inside a mobile communication system to perform initialization and maintenance functions of a plurality of relay line devices.

Each relay line device that transmits / receives HDLC frames from a node providing a communication path between processors in a mobile communication system to a relay line, and a plurality of relay lines in a redundant node maintenance device without having its own maintenance function inside Device management functions were required.

An object of the present invention devised to meet the above requirements is to enable a node maintenance device to perform a state management and maintenance function for a node as well as a maintenance function for a plurality of relay devices in a mobile communication system. An object of the present invention is to provide a redundant node maintenance device and a relay device that enable the node maintenance device and the trunk line board to be matched with each other.

In order to achieve the above object, the present invention, the first and second node maintenance apparatus connected by a redundant control cable; A plurality of relay line devices matched with the first and second node maintenance devices by a parallel data line / address line; The redundant first and second node maintenance devices may be provided with a cable connected to access a plurality of relay device connected to the other side.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

Referring to the configuration for matching the node maintenance device and the trunk line board of FIG. 1, the node maintenance devices 100 and 101 are duplicated in units of a shelf to maintain high reliability, so that the redundant control line is connected to the cable 103. Is connected.

The node A maintenance device 100 is connected to a data line, an address line, and various control lines on a back board to perform maintenance functions for the relay A devices 104, 105, and 106. Data lines, address lines, and various control lines are connected through the cable 110 in order to perform maintenance functions for the 107, 108, and 109.

Similarly, the B-side node maintenance device 101 has a data line, an address line, and various control lines connected to the back board to perform maintenance functions on the own-side relay line devices 107, 108, and 109. Data lines, address lines, and various control lines are connected via a cable 111 to perform maintenance functions for the devices 103, 104, 105.

A functional block configuration for relay line board registration in the node holding apparatus of FIG. 2 is as follows.

In the figure, 201 is an integrated multiprotocol processor (hereinafter referred to as IMP), 202 is a relay line device dismounting and mounting detecting unit, 203 is a buffer control circuit, 204 is an address decoder, 205 is a data / address buffer, 206 is an interrupt processing unit, 207 denotes a memory unit, 208 denotes a hermetic relay line mounting and mounting signal line around each maintenance unit, 209 denotes a hernia relay line mounting and mounting signal line around each maintenance unit, and SD0-SD7 denotes a relay line on the magnetic side backboard. Parallel data line connected to the device, XD0-XD7 is the parallel data line connected to the other relay device through the cable, SA0-SA23 is the parallel address line connected to the relay device on its own back board, XA0-XA23 is the other party through the cable Each parallel address line connected to the relay line device is shown.

The IMP 201 generates addresses, data, and various control signals for access to the trunk line board with an integrated multiprotocol processor. The relay board disconnection / failure detection unit 202 is a function unit that detects a failure and a failure recovery signal of the disconnection and mounting signals inputted from the relay side and the relay terminal device on the center line device and the relay line board.

The buffer control circuit 203 is a circuit for controlling the data / address buffer 205 to access the own side or counterpart relay line device with the signal input from the address decoder.

The interrupt processing unit 206 is a place where programs and data for performing maintenance functions of the relay apparatus are stored and are composed of 256K byte Read Only Memory (ROM) and 512K byte Random Access Memory (RAM).

So far, the functional block configuration for relay line board matching in the node maintenance apparatus shown in FIG. 2 has been described.

A detailed diagram of the buffer control circuit and the buffer of FIG. 3 is as follows.

The address buffer 301 serves as a buffer between addresses IA0-IA23 in the maintenance device and addresses SA0-SA23 connected to a relay line device located on the same backboard as the maintenance device and is operated by a SAEN * signal.

The address buffer 302 serves as a bidirectional buffer between addresses IA0-IA23 inside the maintenance unit and data SD0-SD7 connected to a relay line device located on the same backboard as the maintenance unit, and the direction control is controlled by the RW * signal. It is operated by SDEN * signal.

The data buffer 304 acts as a bidirectional buffer between data IO0-IO7 inside the maintenance device and data XD0-XD7 connected to the relay device located on the other back board by cabled with the maintenance device, and the direction control is an RW * signal. Controlled by XEDN * signal.

The buffer control circuit 305 controls the ISAEN *, ISDEN *, and IXDEN * signals input from the address decoder as the active * signal of the redundant maintenance unit and the SIDE signal of which the maintenance unit can know the A side or B side and buffers the buffer. Drives the control signals SAEN *, XAEN *, SDEN * and XDEN *.

The following describes a maintenance function between the maintenance device and the trunk line device.

In FIG. 1, the node maintenance device operating as the active one among the node maintenance devices 100 and 101 is initialized and detects a position from the SIDE signal input from the outside of FIG. 2, and the relay line device is disconnected from the relay cable disconnection and mounting detector 202. It finds the location of the relay board mounted in order to initialize the controller and performs the function for the board.

At this time, the initialization for the own board is accessed through the data buffer 205 and the initialization for the other board is accessed through the data buffer 206.

Here, a preferred embodiment of the data buffer is the 74LS245 bidirectional buffer.

In case of normal operation after the initialization of the relay line device, the node maintenance device breaks up the mounting and dismounting state of the relay line board and periodically performs the maintenance function for the relay line board.

The present invention configured and operated as described above is duplicated without having its own maintenance function inside each relay line device that transmits and receives HDLC frames from the node providing a communication path between processors in the mobile communication system to the relay line. Implemented multiple trunk line device management functions in the node maintenance unit, eliminating control circuits and peripheral circuits for implementing the maintenance function in the trunk line device, simplifying the functions inside the trunk line board, and providing economic advantages and maintenance functions of the trunk line device. This has the effect of being simplified.

Claims (2)

A matching device between an internal node maintenance device and a trunk line device in a mobile communication system, comprising: first and second node maintenance devices (100, 101) connected by a redundant control cable (103); A plurality of relay line devices matched with the first and second node maintenance devices (100, 101) in parallel data lines / address lines; Redundant node maintenance, characterized in that the redundant first and second node maintenance device (100, 101) has a cable (110, 111) connected to access a plurality of relay line devices connected to the other side Matching device of the device and the trunk line device. 2. The apparatus of claim 1, wherein the first and second node maintenance devices (100, 101) comprise: an integrated multiprotocol processor (201) for generating addresses, data and various control signals for access to the trunk line board; A relay line device mounting and mounting detection unit 202 for detecting a hernia and mounting signal inputted from the own side and the other side relay line device and a breakdown and failure recovery signal of the board of the relay line with respect to the relay line device; An address decoder 204 coupled to the multiprotocol processor 201 to perform address decoding; A data / address buffer 205 coupled to the multiprotocol processor 201; A buffer control circuit section (203) for controlling the data / address buffer (205) for access to the own side or counterpart relay line device with the signal input from the address decoder (204); An interrupt processor (206) connected to the multiprotocol processor (201) for storing a program and data for performing a maintenance function of a relay apparatus; And a memory unit 207 connected to the multiprotocol processor 201, the data / address buffer 205, and the address decoder 204. The matching device of the redundant node maintenance apparatus and the relay apparatus .