KR20050060687A - A method for processing data by using uart communication - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to data processing in a communication system using a universal asynchronous receiver transmitter (UART), hereinafter referred to as " UART " The present invention relates to an efficient data processing method in a UART communication method of a communication system that can facilitate data processing in a control unit of a base station.

The constituent means constituting the data processing method according to the present invention UART communication proposed as described above, the processor assembly apparatus responsible for the routing path and interface provision and the state management of the base station attachments under the control of the base station processor (BSP) and the addition UART communication between devices, the method comprising: transmitting, by an application layer, a data message including a length byte to an OS layer in the processor assembly device; Transmitting the message to the additional device by a UART communication method in an OS layer receiving the message; Analyzing the message received by the additional device and transmitting a corresponding response message to an OS layer in the processor assembly device; An OS layer receiving the response message sends a data message including a length byte to the application layer; The application layer receiving the data message (Layer) processing the operation; characterized in that it comprises a.

Description

A METHOD FOR PROCESSING DATA BY USING UART COMMUNICATION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to data processing in a communication system using a universal asynchronous receiver transmitter (UART), hereinafter referred to as " UART " The present invention relates to an efficient data processing method in a UART communication method of a communication system that can facilitate data processing in a control unit of a base station.

In order to perform communication for data processing by various additional devices and a control unit of a base station using a conventional UART communication method, a plurality of base station transceiver (hereinafter, referred to as "base station") devices of a mobile communication system are configured. BS Peripheral Control Processor Assembly (hereinafter referred to as "Processor"), which is responsible for providing routing paths and interfaces and managing status of base station attachments under the control of a Base Station Processor (BSP). Assembly device ", and various additional devices that communicate with the processor assembly device using a UART communication scheme.

Meanwhile, the processor assembly apparatus may be configured by using an application layer (hereinafter referred to as a "layer") that interfaces with a state block and a failure block operating in a base station processor of a base station and UART and HDLC communication schemes. It consists of an OS layer (hereinafter referred to as "layer") that interfaces with additional devices.

The constituent means constituting the data processing method through the UART communication method with the processor assembly device and the additional devices of the base station having the above configuration,

Sending a corresponding data message to the OS layer by an application layer in the processor assembly device;

Driving a timer at the same time as the data message transmission;

An OS layer receiving the data message transmitting a message to an additional device by a UART communication method;

Transmitting, by the accessory device receiving the data message, a response message to the received message to an OS layer in a processor assembly device;

Storing the data received in order by the OS layer receiving the response message in a buffer;

Determining whether a timer for driving an application layer ends while being stored in the buffer;

If the determination result is not terminated, the response message data is continuously stored in the buffer, and when the timer expires, the application layer retrieves and processes the response message in the buffer.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation and preferred embodiment of the conventional data processing method by the UART communication having the above configuration means.

1 is a process diagram of a data processing method according to a conventional UART communication, in which an application layer operating inside a processor assembly device has a corresponding message format for requesting a response message for a specific operation from additional devices of a base station. The data message is transmitted to the OS layer (S1).

The message format transmitted by the application layer is composed of a command part of 1 byte, a data part that can be changed to several bytes, and a checksum part of 1 byte. The data portion may vary by a few bytes depending on the amount of data to be transmitted.

When the application layer starts to transmit data in a specific message format to the OS layer, at the same time, it drives a timer determined by experiment (S2). The driving of the timer according to the experiment is for the application to take and process the response message accumulated in the buffer for a predetermined time when the response message is transmitted from the additional devices. Therefore, the setting value of the timer can be changed according to the message type or the type of additional devices, and the value of each set timer is determined by the operator by experiment.

When the timer is driven and the corresponding message is transferred from the application layer to the OS layer, the OS layer transmits message data to corresponding additional devices by the UART communication method (S3). In this case, data to be transmitted is transmitted by dividing by 1 byte, and 1 bit of start bit is added to 1 byte of data to be transmitted. The timer will continue to run counters in the process of being sent as described above, and the application will continue to detect the counter of the timer.

As described above, the additional device sequentially receiving data to which the start bit is added to one byte of data is combined and analyzed to perform a corresponding operation, and transmits a response message to the OS layer in the processor assembly device (S4). In this case, the additional device transmits the response message one byte at a time and transmits all the messages by adding a start bit to the one-byte data transmitted.

The OS layer receiving the 1-byte data and the start bit added thereto from the additional device removes the start bit from the transferred data and sequentially stores the start bit in the buffer (S5). At this time, in the process of sequentially loading data into the buffer, the application layer in the processor assembly apparatus must check whether the driven timer reaches the set counter and ends (S6).

If the application layer checks the counter and the timer has not expired, the OS layer removes the start bit from the incoming data, and then continuously loads the data into the buffer. The response message data is obtained from the buffer in which the data is loaded and processed (S7).

According to the data processing method according to the conventional UART communication described above, when the application layer reaches the timer setting counter by driving a timer while delivering a message to the additional devices, the data stored in the OS layer is retrieved and processed. Since there is a method, it is necessary to determine an appropriate end time of the timer through actual interworking with the additional devices each time in order to know the setting value of the timer.

In addition, there is a disadvantage in that the overall load of the processor assembly device is increased due to frequent timer operation, which degrades the overall system performance.When the load of the UART communication section between the processor assembly device and the additional devices becomes high, the setting time of the timer determined by experiments is increased. There is a problem that may occur when all the data does not come in.

On the other hand, the processor assembly apparatus is not in the form of sending a certain message to request the response message to the additional device, the event is generated by the additional device alone to transmit a specific message to the processor assembly device can be processed by the processor assembly device. The problem arises that there is no solution.

The present invention was devised to solve the above-mentioned problems of the prior art, and includes a length byte indicating a length of data when a specific message data is to be transmitted in an application layer. Receives the response message data received by UART communication from the additional devices in the OS layer and stores it in the buffer, and transmits the data to the application layer when the received Lang value is the same as the loaded data. It is an object of the present invention to provide a data processing method by UART communication that allows a message to be processed.

In order to solve the above technical problem, the constituent means of the data processing method according to the present invention proposed by the UART communication,

In the UART communication between the processor assembly device responsible for providing the routing path and interface and the state management of the base station additional devices under the control of the base station processor (BSP),

Transmitting, by an application layer, a data message including a length byte to an OS layer in the processor assembly device;

Transmitting the message to the additional device by a UART communication method in an OS layer receiving the message;

Analyzing the message received by the additional device and transmitting a corresponding response message to an OS layer in the processor assembly device;

An OS layer receiving the response message sends a data message including a length byte to the application layer;

And processing the operation by the application layer receiving the data message.

In the transmitting of the OS layer to the additional device, the received data message is transmitted by dividing the received data message by 1 byte, and the start byte is added to the transmitted 1 byte message.

The OS layer receiving the response message transmits a data message including a length byte to the application layer.

The process of storing the length byte value received from the additional device, removing the start bit from the data transmitted from the additional device, and storing it in the buffer in order, and determining whether the length byte value and the length value of the buffer are the same. And if the result of the determination is not the same, continuously storing the data in a buffer and transmitting the same to the application layer.

Hereinafter, with reference to the accompanying drawings will be described in detail the operation and preferred embodiment of the data processing method by the UART communication of the present invention consisting of the above configuration means.

First, in order to describe the data processing method according to the UART communication of the present invention, the configuration of a related base station system is described. In order to perform communication for data processing by various additional devices and a control unit of a base station using a UART communication method, A base station additional device under the control of a base station processor (BSP), among a plurality of assemblies constituting a base station transceiver system (hereinafter referred to as a "base station") device of a mobile communication system. A processor assembly (BS Peripheral Control Processor Assembly, hereinafter referred to as a "processor assembly device") that is responsible for providing routing paths and interfaces and managing status of the devices, and various additional devices that perform communication using the UART communication method with the processor assembly device. Consists of

Meanwhile, the processor assembly apparatus may be configured by using an application layer (hereinafter referred to as a "layer") that interfaces with a state block and a failure block operating in a base station processor of a base station and UART and HDLC communication schemes. It consists of an OS layer (hereinafter referred to as "layer") that interfaces with additional devices.

3 is a flowchart illustrating a data processing method according to the present invention, UART communication, with reference to this will be described a specific operation and embodiment of the data processing method.

First, an application layer (hereinafter referred to as APP) layer in a processor assembly device transmits a data message including a length byte having a message format different from the conventional one to an OS layer in order to deliver it to a specific additional device. S10). That is, in order to deliver a data message to a specific additional device under the control of the base station processor of the base station, the application layer delivers it to the OS layer in the form of a previously negotiated message.

FIG. 5 shows the message format, where a 1-byte COMMAND portion and a 1-byte length portion and a variable byte data portion and a 1-byte checksum are variable. It is divided into parts. As described above, the message format is transmitted in a configuration in which a length byte is added, unlike in the related art.

The OS layer receiving the data message including the length byte from the application layer transmits the message data to a specific additional device by the UART communication method (S20). In this case, the message data is transmitted by dividing the received message data by 1 byte to the additional device. Meanwhile, during the transmission process, one bit of start bit is added to one byte of data for transmission.

As described above, the additional device that receives the data message from the OS layer combines all the received data, analyzes the received data, performs the corresponding operation, and then sends a response message to the delivered message in the processor assembly device. Subsequently, transmission is performed (S30). Even in this case, the additional device transmits the response data message to be transmitted by dividing the data one byte by one byte, and adds one bit start bit to one byte of data to be transmitted.

The OS layer continuously receives and stores the response data message transmitted from the additional device, and transmits the response message data including the length byte to the application layer included in the processor assembly apparatus (S40). The OS layer receiving the response message transmits the response message data including the length byte to the application layer according to a predetermined procedure, which will be described with reference to FIG. 4.

The OS layer stores a value recorded in the length byte of the message data transmitted from the additional device (S41). The reason for storing the length byte value as described above is that the application layer receives and processes a response message from the OS layer without using a timer, which is one of the characteristics of the present invention.

After storing the length byte value, the OS layer performs an operation of storing data in order after removing the start bit from the response data message received from the additional device (S42). In the same way that data is transmitted from the OS layer to the additional device by UART communication, when the data is transmitted from the additional device to the OS layer by adding the start bit, the start bit is removed from the data transmitted from the additional device. Only pure data is stored in order in the buffer.

During the process of removing the start bit from the buffer, the OS layer continuously checks the length of the data stored in the buffer and compares the stored length byte with the length of the buffer. Judgment must be made (S43). This is to deliver the stored data to the application layer when the length values are the same so that they can be processed. That is, unlike a conventional method, when a predetermined condition is used without using a timer, a response data message can be delivered to an application layer for processing.

If the stored byte byte value and the buffer length are not equal to each other as described above, the start bit is continuously removed from the data input from the additional device, and then stored in the buffer in order. The response message data including the length byte stored in the buffer is transmitted to the application layer (S44).

When the response message data including the length byte is transmitted from the OS layer to the application layer by the above operation, the application layer may process the data to perform the corresponding operation (S50).

As described above, the biggest feature of the present invention is different from that of the prior art, in that it includes the length byte in the message format to be delivered, and the length byte in the process of transmitting the response message data from the OS layer to the application layer. If the value and the length of the buffer are the same, the response data message is passed to the application layer for processing. In other words, the timer is no longer needed.

According to the data processing method according to the present invention UART communication having the configuration and operation and the preferred embodiment as described above, even if the additional device generates an event itself and transmits a message to the processor assembly device, In the same case, the data can be transferred to the application layer for processing.

In addition, unlike the prior art, since the timer setting the counter value by experiment is unnecessary, the internal load of the processor assembly device is reduced, and the installation cost due to the timer removal is reduced.

On the other hand, even if the load is increased in the UART communication section between the processor assembly device and the additional device, an error of data processing does not occur (in the past, all of the data may not come in within the timer setting time). It can be reliable, and the overall data processing speed is improved.

1 is a flowchart of a data processing method according to a conventional UART communication.

2 is a block diagram of a message format in the conventional data transmission.

3 is a flowchart illustrating a data processing method using UATR communication according to the present invention.

4 is a data message transmission procedure corresponding to an embodiment of the present invention.

5 is a block diagram of a message format in the data transmission of the present invention.

Claims (3)

In the UART communication between the processor assembly device responsible for providing the routing path and interface and the state management of the base station additional devices under the control of the base station processor (BSP), Transmitting, by an application layer, a data message including a length byte to an OS layer in the processor assembly device; Transmitting the message to the additional device by a UART communication method in an OS layer receiving the message; Analyzing the message received by the additional device and transmitting a corresponding response message to an OS layer in the processor assembly device; An OS layer receiving the response message sends a data message including a length byte to the application layer; The application layer receiving the data message (Layer) processing the operation; Data processing method according to the UART communication, characterized in that made. The method according to claim 1, In the transmitting of the OS layer to the additional device, the input data message is transmitted by dividing the received data message by 1 byte, and the start 1 bit is added to the transmitted 1 byte message and transmitted by UART communication. Way. The method according to claim 1, The OS layer receiving the response message transmits a data message including a length byte to the application layer. The process of storing the length byte value received from the additional device, removing the start bit from the data transmitted from the additional device, and storing it in the buffer in order, and determining whether the length byte value and the length value of the buffer are the same. And continuously storing data in a buffer when the result of the determination is not the same, and transmitting the data to an application layer in the case of the same.