KR100598041B1 - Method of measuring total received data when using wireless data service in wireless terminal - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a method for measuring the amount of received data when using a wireless data service in a wireless communication terminal.

2. The technical problem to be solved by the invention

The present invention provides a received data for outputting the total amount of data received so far by measuring the amount of actual application data from a valid Radio Link Protocol (RLP) packet received when using a wireless data service in a wireless communication terminal. The purpose is to provide a method for measuring quantity.

3. Summary of the Solution of the Invention

According to an aspect of the present invention, there is provided a method of measuring an amount of received data when using a wireless data service in a wireless communication terminal, the method comprising: setting and initializing a measurement unit time according to a data reception request using a wireless data service; Payload length information and media access control included in the connection layer header of the RLP packet as a valid RLP packet is received using a wireless data service Calculating an amount of application data excluding a header by using a media access control trailer (MAC Trailer) of a layer (MAC Layer) and accumulating the amount of the application data in the accumulated received data; And outputting, by the wireless communication terminal, the accumulated received data to the output device as the total amount of data received so far each time the set measurement unit time expires.

4. Important uses of the invention

The present invention is used in a wireless communication terminal.

Wireless communication terminal, wireless data service, wireless link protocol (RLP), application data, received data measurement

Description

Method of measuring received data amount when using wireless data service in wireless communication terminal {METHOD OF MEASURING TOTAL RECEIVED DATA WHEN USING WIRELESS DATA SERVICE IN WIRELESS TERMINAL}

1 is a configuration diagram of an embodiment of a wireless data service system to which the present invention is applied;

2 is a diagram illustrating an embodiment of a protocol stack in a wireless data service system to which the present invention is applied;

3 is a flowchart illustrating a method of measuring an amount of received data when using a wireless data service in a wireless communication terminal according to the present invention.

* Explanation of symbols on the main parts of the drawing

11: Computer 12: Wireless Communication Terminal

13 base station 14 base station controller

15: Exchange 16: Public telephone network (PSTN)

17: network interlocking device (IWF) 18: Internet network

The present invention relates to a received data amount measuring method for measuring a received data amount when using a wireless data service in a wireless communication terminal.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smart phone, a next generation mobile communication terminal (IMT-2000), wireless communication while carrying a person, such as a wireless LAN terminal Say this is possible terminal.

As the demand for wireless communication terminals has increased rapidly, the need for wireless data services has increased along with voice calls. In addition to general file transfer, the wireless data service provides all the services provided by the existing public switched telephone network (PSTN) and public switched data network (PSDN). As a service that can be realized in the section, various application services can be created. Users can implement mobile offices regardless of time and place due to wireless data services, and can secure information competitiveness by enabling rapid business processing in various application service fields.

The wireless data service is configured to enable wireless data communication by adding an interworking function (IWF) in a network infrastructure for an existing voice call and includes functions for connection with other networks.

On the other hand, a data service method using a wireless communication terminal is a line method and a packet method. The circuit method is to connect a wireless communication terminal to a portable information device such as a laptop, a handheld PC (HPC), or a personal digital assistant (PDA), and then use some of the traffic channels as a line to connect the wireless link. It is a method of sending and receiving data asynchronously through RLP (Radio Link Protocol). This method is to install data interworking function (IWF: InterWorking Function) which performs the role of modem pool and protocol conversion in circuit switch for voice service to perform data communication by asynchronous data or connected packet method. have.

In addition, the circuit method is a method of monopolizing bandwidth from the start of a call to the completion point in a communication method of a wireless section regardless of synchronous or asynchronous. Wireless service providers provide wireless data services as a supplementary service to voice services by providing a wireless data service using a radio link protocol (RLP) on a voice channel.

In contrast, the packet method is a multi-method capable of processing a packet of multiple users in one wireless channel, so that a plurality of messages occupy one bandwidth, so that channel efficiency is relatively high and a separate wireless modem (for example, PCMCIA) is used. Card). In circuit-switched schemes, charges are calculated over time, whereas in packet-based schemes, charges are based on the amount of data (packets).

There are two types of packet methods, a connection packet method and a connectionless packet method. First, the connected packet method uses a network interworking device (IWF) using PPP (Point-to-Point Protocol), Internet Protocol (IP), and Radio Link Protocol (RLP). Interworking Function does not require a separate modem pool. In addition, since it does not go through the general telephone switching network (PSTN), it has the advantage of being able to access the Internet without an IP.However, there is a security problem. do.

The connectionless packet method transmits in burst mode when the transmission data is generated, and receives the received data in burst mode. In order to use the connectionless packet method, a radio (RF) device different from the existing voice method must be embedded in the wireless communication terminal itself.

On the other hand, the current wireless communication terminal, unlike the early wireless communication terminal that performs only a simple voice call function, its application area is expanded to be called the aggregate of information technology (IT), as well as wireless Internet services that can be accessed anytime, anywhere It is getting into the spotlight as an information device that can perform location tracking and electronic money functions. In addition to the improvement of processing power, more and more wireless data services are received using the wireless communication terminal itself. That is, various wireless data services can be used without connecting an external terminal to the wireless communication terminal.

However, when receiving a wireless data service using a wireless communication terminal in the related art, only a radio link protocol (RLP: Radio Link Protocol) is implemented in the wireless communication terminal, and the upper protocol is a laptop or handheld connected to the wireless communication terminal. Since it is implemented in an external terminal such as a personal computer (HPC: Handheld PC) or a personal digital assistant (PDA), the measurement of the amount of application data actually received is only possible in an external terminal connected to the wireless communication terminal. there was.

The present invention has been proposed to solve the above problems, and when using a wireless data service in a wireless communication terminal, by measuring the actual amount of application data from the received Radio Link Protocol (RLP) packet It is an object of the present invention to provide a method for measuring the amount of received data for outputting the total amount of received data.
Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In order to achieve the above object, the present invention provides a method for measuring a received data amount when using a wireless data service in a wireless communication terminal, the method comprising: setting and initializing a measurement unit time according to a data reception request using a wireless data service; Payload length information and media access control included in the connection layer header of the RLP packet as a valid RLP packet is received using a wireless data service Calculating an amount of application data excluding a header by using a media access control trailer (MAC Trailer) of a layer (MAC Layer) and accumulating the amount of the application data in the accumulated received data; And outputting, by the wireless communication terminal, the accumulated received data to the output device as the total amount of data received so far each time the set measurement unit time expires.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an embodiment of a wireless data service system to which the present invention is applied.

As shown in FIG. 1, a wireless data service system to which the present invention is applied includes a wireless communication terminal 12 capable of wireless communication while being carried by an individual, a base station 13 connecting the wireless communication terminal and a wireless communication network, A base station controller 14 for controlling and managing base stations, an exchange station 15 for connecting a call of a wireless communication terminal, an external public telephone network (PSTN) 16, for interworking a wireless communication network and the Internet network 18 A network interlocking device (IWF) 17 and an internet network 18.

For example, in order to receive a wireless data service using the wireless communication terminal 12, a terminal such as a notebook, a handheld PC (HPC), a personal digital assistant (PDA), or the like is connected to the outside. That is, the packet data transmitted to the wireless communication terminal 12 through the base station 13 is transmitted to the computer 11 connected to the wireless communication terminal 12, the user uses a wireless data service from an external computer 11 Done. As another example, the wireless data service may be directly used by the wireless communication terminal without connecting an external terminal.

2 is a diagram illustrating an embodiment of a protocol stack in a wireless data service system to which the present invention is applied.

As shown in FIG. 2, when looking at the protocol stack of the wireless data service system to which the present invention is applied, only the radio link protocol (RLP) is implemented in the wireless communication terminal 12. It is implemented in an external terminal (computer) 11. Therefore, conventionally, the measurement of the amount of application data received by using the wireless data service was possible only at the external terminal (computer) 11 connected to the wireless communication terminal 12, and the measurement result was also obtained from the external terminal (computer) 11 Had to check.

However, if the wireless communication terminal 12 infers the amount of application data from RLP (Radio Link Protocol) packets, it is received by the wireless communication terminal 12 up to now without the help of an external terminal (computer) 11. You can measure the amount of data.

3 is a flowchart illustrating a method of measuring an amount of received data when using a wireless data service in a wireless communication terminal according to the present invention.

First, in response to a data reception request using a wireless data service from the outside, the wireless communication terminal 12 sets a measurement unit time and initializes variables such as cumulative reception data and a timer (301). The measurement unit time setting process is to set at which time interval the cumulative received data value is output, and when a user is selected or there is no user selection, a default value is set.

The wireless communication terminal 12 receives a RLP (Radio Link Protocol) packet (302), and checks whether the received RLP packet is a valid packet (303). That is, the RLP packet includes a header, and the header includes a sequence number that is incremented by one each time the base station 13 transmits the RLP packet to the wireless communication terminal 12. The wireless communication terminal 12 checks the sequence numbers of the RLP packets and stores them in the receiving buffer in order. Even if the packets are out of order, packets received with the sequence number within the valid range are regarded as retransmitted packets and stored in the receiving buffer. do. However, packets that are out of sequence but out of sequence number within the valid range are regarded as invalid packets.

As a result of the check 303, if it is an invalid packet, it is removed and the process proceeds to "302" (304). If it is a valid packet, it is stored in a reception buffer according to a sequence number. The amount is calculated and accumulated in the accumulated received data (305). At this time, the process of calculating the amount of application data from the RLP packet is as follows. First of all, the payload length information included in the header of the connection layer and the MAC trailer of the MAC layer are used to view the contents of the application included in the RLP packet. Know the amount of data (bytes).
For example, if the connection layer information included in the MAC trailer is A type format, the amount of pure application data included in the RLP packet is the stream layer header of the entire RLP packet. This value is obtained by subtracting the header (2 bytes) and the RLP header (22 bytes) (1000-2-22 = 976 bytes). If the connection layer information included in the MAC trailer is B type, the amount of pure application data included in the RLP packet is streamed in the length of the session layer payload. This value is obtained by subtracting the Stream Layer Header (2 bytes) and the RLP Header (22 bytes).

Thereafter, the measurement unit time is expired (306). If the measurement unit time has not expired, the process proceeds to step "308". If the measurement unit time has expired, the cumulative received data is output as the total amount of data received so far. Output to the device (in text or voice) (307). Then, it is checked whether the data reception is completed (308). If the data reception is not completed, the process proceeds to step 302. If the data reception is completed, the process ends.

On the other hand, when the RLP packet is stored in the receiving buffer more than the value set in the receiving buffer, the wireless communication terminal 12 delivers the RLP packets of the receiving buffer to the upper layer to empty the receiving buffer.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention, when receiving a wireless data service using a wireless communication terminal, without the help of an externally connected laptop, handheld PC (HPC: Handheld PC), personal digital assistant (PDA), etc. In addition, the wireless communication terminal has an effect of directly measuring the amount of application data received to date and outputting to the user.

Claims (3)

In the method of measuring the amount of received data when using a wireless data service in a wireless communication terminal, Setting and initializing a measurement unit time according to a data reception request using a wireless data service; Payload length information and media access control included in the connection layer header of the RLP packet as a valid RLP packet is received using a wireless data service Calculating an amount of application data excluding a header by using a media access control trailer (MAC Trailer) of a layer (MAC Layer) and accumulating the amount of the application data in the accumulated received data; And Outputting, by the wireless communication terminal, the cumulative received data as an amount of data received so far to an output device every time the set measurement unit time expires; Method of measuring the amount of data received when using a wireless data service in a wireless communication terminal comprising a. The method of claim 1, The measurement unit time setting process, The method of measuring the amount of received data when using a wireless data service in a wireless communication terminal, characterized in that the wireless communication terminal is selected by the user to set the measurement unit time, or set to a default value when there is no user selection. delete

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