KR100266864B1 - Redundancy method of transceiver master control unit in pcs - Google Patents

Abstract

PURPOSE: A duplexing method for main controller of transceiver in personal mobile communication system is provided to solve problem of discordance between active device and processor standby device. CONSTITUTION: The first step is to send request message for alarm and status of main controller and transceiver with an interval from 10msec to several 100msec to an active device in transceiver interface processor wait device. The second step is to send status and information response message of the alarm in the active device. The third step is to send a message requesting the transceiver processor to activate as wait status. The transceiver interface processor wait device sends requested status or information message of an alarm in accordance with periodic message from wait device. The fourth step is to check whether any changes on status relating to main controller failure, and if any change is detected, sends the changed information to the wait device. A wait status of the main controller and the transceiver is checked with same checking process with active status. Duplexing method of transceiver main controller in personal mobile communication system is controlled in accordance with an algorithm selecting active status and wait status reference to the information of status change in real time.

Description

Redundancy Method of Transceiver Master Controller in Personal Mobile Communication System

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duplexing method of a transceiver master controller in a personal mobile communication system, and more particularly, to a transceiver master control unit constituting a transceiver (XCVR) in a base station of a personal communication service (PCS). : How to make XMCU) work in redundancy.

In the redundant operation, two main controllers operate at the same time, one of them performs the main function on the active side and the other is in standby mode. If it can't be done, the standby side will be active and will not affect the call, ie if the active device continues to operate without failure. Continuity is guaranteed and new call settings remain available.

Prior art in this field, as disclosed in U.S. Patent No. 4,575,712, in a communication system comprising a large number of satellite transmitters away from the ordinary receiver and receiver, each transmitter transmits a message to a logical portion and the ordinary receiver. It has a transmitter portion comprising an output stage connected to an output means for transmitting a signal, each transmitter being capable of switching between a standby mode and an active mode.

The logical portion includes means for generating status messages and data messages, and the format of each status message includes the same address portion as the transmitting device and an indication portion movable between the first and second values.

The method of operation during standby to generate repetitive status messages in the indication section specifies the first value.

The method of operation during the active mode to enable the transmitter portion to send a message to the receiving device and the operation during the active mode to switch the indication portion of the status message simultaneously means setting a second value when the message to be received is a status message. Specify.

The PCS system includes a cellular telephone network, a base station, and at least one mobile subscriber station as disclosed in US Pat. No. 5,673,308. Here, the base station includes a transceiver, detection means, and activation requesting means for cellular call transport.

At the base station of the PCS system, the transceiver consists of a frequency rising converter, a receiving frequency falling converter, a main controller and a slave controller.

Looking at the prior art as follows. 1 is a main controller (XMCU), a transceiver (XCVU), a high power amplifier unit (HPAU), and a radio frequency supply unit (RFSU) related to the present invention in a PCS base station (BTS). ) Is a rack mounted shape to help each other locate and understand the operation.

In FIG. 1, α3 indicates that 2FA (Frequency Assignment) is supported, and β5 indicates that 3FA supports β sector. The -P after each board unit's name indicates that it is a PCS.

In FIG. 1, the main controller is a name of a hardware board device, and in the text describing the present invention, a transceiver interface processor (TIP) is a processor concept in terms of software including software executed in a CPU inside the main controller. To see.

The main controller manages and controls the transceiver, and switches the command to the radio frequency supply to display the function in place of the failed high output amplifier instead of the first one of the high output amplifiers α, β or γ. give.

In FIG. 1, the radio frequency supply on the left is for 2FA, and the radio frequency supply on the right is for 3FA. The two main controllers operate on the same side, one on the active side and the other on the atmosphere.

Conventionally, the master controller (TIP) performs the master controller duplication based only on the method of sending and receiving messages on status and alarm information between the active device and the standby device, and informs the other side of the status or alarm. According to the message type, periodic message communication was performed at different cycles.

The Transceiver Interface Processor (TIP) receives this message and analyzes the message content to know the status of the other side and the alarm content. If there is no failure in the main controller and normal operation, there is no problem. However, when the main controller is activated, the standby unit is active.

At this time, if the state sharing does not match according to the time when the failure of the active device is not fully redundant. That is, it can affect the call (Call).

In the event of a failure of the high power amplifier of the base station, a switching signal is given to the RF supply to switch the high power amplifier to redundancy. The result is managed by the transceiver interface processor and simultaneously reported to a higher level, BTS Control Processor (BCP), to provide a status output from the Base Station Management System (BSM).

The NORMAL Light Emitting Diode (hereinafter, abbreviated as LED) in the main controller simply repeats ON / OFF at a 600 msec period. In other words, there was no way to visually check the switching state of the radio frequency supply device without a separate device.

Figure 2 shows the arrangement of the LED attached to the front of the main controller, the appearance of both A device and B device is the same. The NORmal LED is in the on / off state to indicate the control of the radio frequency supply.

If the state of the high power amplifier is all normal, the NORMAL LED of the main controller blinks in the same state as the NORmal LED in the prior art because the control state of the radio frequency supply device is not in the transfer state, but all of the α, β, and γ states. In case of switch switching (= high power amplifier switching) by controlling the radio frequency supply due to the failure of the high power amplifier, the LED blinks differently according to the contents of the radio switching. In the drawing, Reset is not an LED but a switch for hardware reset of the main controller.

For reference, the blinking of each LED of the main controller is as follows.

1) POW (Power)-It is an LED that shows the status of power. It is always on when the power is normal.

2) NOR (Normal)-This LED indicates that the transceiver interface processor is operating. It blinks every 600msec.

3) ACT-This is on when the transceiver interface processor is running active and off when standby.

4) INIT (Initial State)-Indicates that the program is being downloaded and initialized, and blinks at this time. When it is operating normally, it is kept off.

5) FAIL-The main controller is abnormal or not communicating with the base station control processor (BCP).

The LED display of the main controller described above blinks in the same form for both active and standby devices.

A master controller (transceiver interface processor) in an active device communicates with a base station control processor and communicates with the master controller and performs transceiver control. The transceiver interface processor standby unit does not communicate with the base station control processor above it, but communicates with the other transceiver interface processor periodically to share information on status and alarm contents, and the standby unit is activated when a failure occurs in the active unit. It is switched to active.

The problem with the prior art is that the transceiver interface processor does not share information in real time between active and standby, and because the processing routines are not the same, it takes a long time to share state with each other.

For this reason, when the transceiver interface processor active device fails, the standby device is switched to active, which could affect the call due to unnecessary alarm generation and stable operation time.

When a high power amplifier fails, a PC terminal is connected to the debug port of the main controller to allow the operator or system tester to know the results when switching to a redundant redundancy HPA using a radio frequency supply. It was possible to check the output by inputting the command, or to check the output by entering the command in the base station management system.

This is because it is complicated, time-consuming, and difficult to identify the fault condition of the control state of the radio frequency supply, that is, high power amplifier switching state, which reduces productivity in the field and is inconvenient when installing the system in the base station. .

Since the transceiver interface processor standby unit and the active unit perform different software routines and communicate only with the base station control processor in the active unit, the time between the contents of the status management and the active unit is long.

When a communication failure occurs between an active transceiver interface processor and a base station control processor, there is a problem in that a standby device is switched to an active state and takes a long time to be stable and operate normally.

Accordingly, the present invention has been made to solve the above problems, and an object thereof is to provide a duplexing method of a transceiver main controller in a personal mobile communication system.

1 is a configuration diagram of a rack mounted with a main controller, a transceiver, a radio frequency supply device and a high power amplifier in a PCS base station related to the present invention.

2 is a view showing an LED array attached to the front of the main controller.

3 is a state diagram showing state information sharing (a) and state transition (b) between main controller activity and standby;

In Figure 4, when the high power amplifier is all normal, that is, the NORMAL LED display of the main controller when the radio frequency supply is in the normal position.

In FIG. 5, when the radio frequency feeder is switched to a preliminary high power amplifier due to a failure of the 2FA high power amplifier β, the NORMAL LED of the main controller is displayed.

6 shows the NORMAL LED of the main controller when the radio frequency feeder is switched to a preliminary high output amplifier due to a failure of the 3FA high output amplifier β.

7 shows the NORmal LED of the main controller when the 2FA high power amplifier β and the 3FA high power amplifier α are switched to the preliminary high power amplifier due to a failure.

8 is a schematic representation of the system and activity of the system and the operation of the standby main controller.

In order to achieve the above object, a preferred embodiment of a transceiver main controller duplexing method in a personal portable communication system according to the present invention,

Periodically transmitting, at the transceiver interface processor standby device, an information request message on the state and alarm of the master controller and the transceiver at intervals of several 10 msec to several 100 msec according to the message type to the active device;

Sending, by the active device receiving the information request message for the status and alarm, an information response message for the status and alarm to the standby device;

When the response to the requested message comes to the active device, analyzing the content and updating the state contents of the master controller and the transceiver managed by the standby device;

If the active device is in an abnormal state according to the status update and the state of the transceiver interface processor of the active device, sending a message requesting that the standby device is switched to be active and requesting the other transceiver interface processor to be operated as standby;

The active device transceiver interface processor periodically sends information on a requested state or alarm to a standby device according to a message sent from the other standby device; And

Checking whether there is a state change related to the failure of the master controller at any moment, and if there is a state change, transmitting the contents to the standby device, wherein the transceiver interface processor is active and in standby state. State sharing and redundancy switching between nodes.

In the present invention, in the state check of the main controller and the transceiver itself by the same check process in the active and standby state, and in the state update, by the algorithm for determining the active and standby in real time according to the changed state It is desirable to control redundancy,

When the transceiver interface processor is initially set up, it is preferable that the active transceiver interface processor is configured to be connected to the main controller in hardware so that a collision does not occur between the active and the long term.

The main controller controls the radio frequency supply device according to the failure details of the high power amplifier received from the base station control processor, and that is, the radio frequency supply device is switched to a certain position to reserve any of the α, β, and γ high power amplifiers. Report to the base station control processor and display the result by turning on / off using the NORMAL LED of the main controller.

The switching state of the 2FA radio frequency supply unit is preferably short flashing of the LED, and the switching state of the 3FA radio frequency supply unit is preferably long flashing.

Each sector was classified using the number of flashes of the NORMAL LED of the main controller, and it is preferable to classify the FA (which is the radio frequency supply device on the left or the right) using the flashing cycle.

According to an embodiment of the present invention for achieving the above object, a preferred embodiment of the communication method between the BCP and the XCVU in a personal communication system having a transceiver main controller by the duplication method,

Means for sharing information while communicating between the base station management processor and the transceiver in the same manner as the active device and the standby device; And

Means for controlling the transceiver and the master controller.

In the present invention, the control of the transceiver is a control processing using an active transceiver interference processor, the control of the main controller is using the active and standby transceiver interference processor using communication with the base station control processor It is preferable to process by

Preferably, the base station control processor controls the system and reports status and alarms of the master controller and the transceiver only to the active transceiver interface processor.

In the present invention, in the main controller (transceiver interface processor), the state sharing between active and standby does not depend only on message communication with each other, but additionally checks the status and introduces a method performed by the active and standby devices. In terms of transceiver interface processor redundancy (when and how to switch), active and standby perform the same algorithm. This reduces the time to share the same alarm and status information between the transceiver interface processor activator and the standby, thus avoiding unnecessary alarms and avoiding calls during the transition between transceiver interface processor activation and standby. . In addition, by using the LED of the main controller properly, the control of the switching control of the radio frequency supply device can be checked at the base station without additional equipment. Method that has been possible in the prior art (connecting the terminal to the main controller or base station control processor at the base station and checking the output after inputting the command, or confirming the control of the radio frequency supply switching control by the command input directly at the base station management system) Will continue to use its function and add new functions using the LED of the main controller regardless of the existing functions. In addition, communication with the base station control processor is enabled in both the transceiver interface processor active device and the standby device, and the message communication between the transceiver interface processor active and the standby is used in parallel to reduce the time required to share information and to communicate with the base station control processor. The communication is carried out in the transceiver interface processor active unit and the standby unit in the same manner, and the processing related to the direct state control is performed in the transceiver interface processor active unit. The present invention allows the main controller (transceiver interface processor) to be redundant in real time between active and standby using the above method.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 3 is a diagram illustrating a state transition between a transceiver interface processor activity and a standby device by means of a periodic state transfer message and a transceiver state checking method (a), and according to the contents thereof, determine operation and standby state between the A device and the B device according to the contents thereof, and ).

In (b) of FIG. 3, the transceiver interface processor is activated when the device A is normal in the initial state INIT. The opposing side of the active device operates in standby, and transitions between the active and standby states refer to the state of the opposing transceiver interface processor when the NORmal and ABNORmal states change.

Referring to FIG. 3, the information is shared between the main controller (transceiver interface processor) active device and the standby device by using the following two methods, and the activity is determined according to the normal and abnormal states of each transceiver interface processor. The processor implements an algorithm that performs the same on the transceiver interface processor activation and the standby device.

In the first method, the transceiver interface processor standby periodically sends a message requesting the active device to send information about the current transceiver and master controller status and alarms to the standby at intervals of 10msec to 100msec, depending on the message type.

When the response to the requested message comes from the active device, it analyzes its contents and updates the status of the main controller and transceiver managed by the standby device.

If the active device is in an abnormal state according to the status update and the transceiver interface processor state of the active device, the standby device is switched to the active state and sends a message requesting that the other transceiver interface processor that is active to operate as standby.

The transceiver interface processor activator periodically transmits information on the status of the current transceiver and the main controller and alarms to the standby according to a message requested by the transceiver interface processor standby device.

At any moment, if there is a state change related to the failure of the master controller itself, the contents are sent to the standby device.

The second method checks and updates the status of the transceiver and the master controller itself by the same checking process in active and standby. Redundancy is controlled by an algorithm that determines activity and standby in real time according to the state change.

At the initial setup of the transceiver interface processor, only the active transceiver interface processor is configured to be hardware-connected to the transceiver, so there is no conflict between active and standby.

The main controller controls the radio frequency supply device according to the failure details of the high power amplifier received from the base station control processor, and the details, that is, the position of the radio frequency supply device, is switched to which of the α, β, and γ high power amplifiers are preliminarily transferred. Report to base station control processor and display using NORmal LED of main controller. This is with reference to FIGS. 4 to 7.

4 to 7 show the flickering of LEDs in each case when the contents of the high frequency amplifier are switched using the NORmal LED of the main controller when the radio frequency supply device is switched. The switching state of the 2FA radio frequency supply was classified as short blinking of the LED, and the switching state of the 3FA radio frequency supply was classified as long flashing.

Each sector of the high-power amplifier was classified using the number of flashes of the NORmal LED of the main controller, and FA classification (either the left or right radio frequency supply device?) Was used by using the flashing period. In the figure, the LED blink cycle was selected through the experiment the time that is most easily recognized by the general tester.

FIG. 8 is a schematic diagram of a process associated with a transceiver while schematically illustrating a personal mobile communication system. The active device transceiver interface processor performs the message relay between the base station control processor and the transceiver, manages the transceiver status and alarms, manages the configuration, and controls and manages the transceiver interface processor itself. In the standby transceiver processor, the status check and communication functions are performed in the same way as the active device, but the control operation is not performed according to the contents. The statuses and alarms detected by the transceiver are reported upwards via the base station control processor, the main processor of the base station, and the call control processor (CCP), the main processor of the base station controller, and are integrated in the base station management system.

Referring to FIG. 8, when the message is exchanged between the main controller and the base station control processor, the active device and the standby device communicate with each other in the same manner and share information and control the transceiver and the main controller. It is composed.

The part related to the control of the transceiver is processed by the active transceiver interface processor, and the part related to the control of the master controller itself is processed by the active and standby transceiver interface processor respectively using communication with the base station control processor.

According to whether the communication status is normal or abnormal between each main controller (transceiver interface processor) and the base station control processor, the processor which preempts the activity checks and updates the status by the same checking procedure in the transceiver interface processor activity and the standby device. The active transceiver interface processor sends a message to the transceiver that turns off the transceiver's output if the base station control processor is abnormal. (If the base station control processor is abnormal, the base station cannot perform normal service. To minimize the output of the base station).

Reporting status and alarms of the master controller and the transceiver to the base station control processor is by default enabled only on the active transceiver interface processor.

Transceiver-related information of the base station shape processor's base station configuration information goes down to the transceiver through the active device transceiver interface processor, and the standby device has information received from the base station control processor and the message communication between the active device and the active device and status. Share and match.

If the main controller is mounted with only one board, it is activated when the mounted main controller is normal. The two main controllers are mounted on the board and operated in the active and standby states, and the transceiver interference processor operating in the active state at any moment does not communicate with the base station control processor due to a hardware failure. When the communication with the base station control processor is normal, the interface processor operates by switching the active device to standby and the standby device to be active by the state sharing between the transceiver interface processors. Since activation performs the actual control function and the standby device is in a kind of standby state, the device in which all the states are normal operates preferentially, and the transceiver interface processor when the operation is initially started by supplying power to the main controller (transceiver interface processor). If both A and B are OK, set A to active.

In the present invention operating as described above, the main controller (transceiver interface processor) shares information on status and alarm in real time between the active device and the standby device, and contributes to redundancy. In the prior art, it is possible to share the state in real time that it took time to share the state between the transceiver interface processor activity and the standby, so that the redundancy operation is performed properly without affecting the call and unnecessary alarm message when switching between the active device and the standby. Does not occur. As a result, the convenience of system users and the profitability of operators are increased.

It is possible to know the contents of the switching control of the radio frequency supply without connecting a separate measuring device or terminal to the system at the base station. Less test time and convenience in system production and installation of base stations on site and in maintenance testing contribute to increased productivity.

Real-time redundancy is possible at any moment between the main controller (transceiver interface processor) active and standby. Transceiver interface processor activity and standby enable message sharing and communication with the base station control processor to share state and shape information in real time and enable redundancy. As a result, the convenience of system users and the profitability of operators are increased.

Claims (6)

A method for controlling a redundant transceiver interface processor, comprising: in a transceiver interface processor standby device, periodically requesting an active device to send an information request message about a state and an alarm of a main controller and a transceiver at intervals of several 10 msec to several 100 msec depending on the message type. Transmitting; Transmitting, by the active device receiving the information request message for the status and alarm, an information response message for the status and alarm to the standby device; Receiving, by the active device, the content response message and updating the state content of the master controller and the transceiver managed by the standby device when the information response message is received; In response to the status update and the status of the active device, if the active device is in an abnormal state, transmitting a message requesting that the standby device be switched to active and requesting the active device to operate as standby; Transmitting, by the active device, information on the requested state or alarm to the standby device according to a message periodically received from the other standby device; And checking whether there is a state change related to the failure of the main controller at any moment, and if there is a state change, transmitting the contents to the standby device, wherein the transceiver interface processor is active and in standby state. A method of duplication of a transceiver master controller in a personal mobile communication system that performs state sharing and duplication switching between each other. The method according to claim 1, wherein the state check of the main controller and the transceiver itself is checked by the same checking process in the active and standby states, and in the state update, the algorithm for determining the active and the standby in real time according to the changed contents. Redundancy control method of the transceiver main controller in a personal mobile communication system by controlling the redundancy. The transceiver main control of the mobile communication system of claim 2, wherein the initial configuration of the transceiver interference processor is configured so that only the active transceiver communication processor is connected to the main controller in hardware so that a collision does not occur between the active and standby devices. Method of duplication of groups. According to any one of claims 1 to 3, wherein the main controller controls the radio frequency supply device according to the failure details of the high output amplifier received from the base station control processor, the details, that is, the position of the radio frequency supply device To the base station control processor, which indicates which of the α, β, and γ high power amplifiers are to be switched in advance, and displays the result by turning on / off using the NORMAL LED of the main controller. Redundancy method of transceiver master controller in. 5. The duplication of a transceiver main controller in a personal mobile communication system according to claim 4, wherein the switching state of the 2FA radio frequency supply is divided into short flashes of LEDs, and the switching state of the 3FA radio frequency supply is divided into long flashes. 6. Way. The personal mobile communication according to claim 4, wherein each sector is classified using the number of flashes of the NORMAL LED of the main controller, and the FA is classified using the flashing period (which is a radio frequency supply device on the left and the right). Redundancy method of transceiver master controller in system.

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