JP2002345023A - Wireless communication system, line control device, line control method, and line control program - Google Patents

Abstract

(57) [Problem] To prevent buffer overflow when data is transmitted from a wired line to a wireless line. SOLUTION: The number of wired lines determining means 6a determines the number of wired lines usable for communication, and the number of wireless lines determining means 6b determines the number of wireless lines mounted on a base station 3, and determines the number of wired lines. The number control means 6c controls the number of wired lines 4a to 4d used during communication so as not to exceed the number of wireless lines mounted in the base station 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a radio communication system,
The present invention relates to a line control device, a line control method, and a line control program, and is particularly suitable for being applied to a mobile packet communication system.

[0002]

2. Description of the Related Art Conventionally, PDC (Personal Di)
2. Description of the Related Art In a cellular cellular mobile packet communication system, a plurality of wired lines have been used for communication between a packet processing unit and a base station in order to transmit various data. FIG. 9 is a block diagram showing a schematic configuration of a conventional wireless communication system. In FIG. 9, a base station 3 has a radio line 2 for communicating with the mobile station 1.
a and 2b are mounted, and the packet processing unit 35 has a wired line 4a for transmitting data to the base station 3.
To 4d.

Here, the packet subscriber processing unit 35 is provided with a packet line control unit 36, and the packet line control unit 36 determines the number of wired lines that can be used when transmitting data to the base station 3. Investigate and determine the actual number of wired lines to use based on the number of available wired lines.
The base station 3 is provided with a buffer 3a, and the buffer 3a temporarily stores data transmitted through the wired lines 4a to 4d.

FIG. 10 is a sequence diagram showing a schematic operation of a conventional radio communication system. In FIG. 10, FIG.
When the packet line controller 36 is activated (K
1), the packet line control device 36 checks the number of wire lines available for communication with the base station 3 (K2). And
Based on the result of the survey on the number of usable wired lines, the base station 3
Determine the number of wired lines actually used for communication with (K1
5) The data is transmitted to the base station 3 via the determined wired lines 4a to 4d (K16).

[0005] The base station 3 has a packet subscriber processing unit 3.
5, when the data is transmitted, the data is transmitted to the buffer 3
Stored in a. Then, the data stored in the buffer 3a is read out, and the data is transmitted via the wireless lines 2a and 2b (K7). Here, when determining the number of actually used wired lines, the packet line control device 36 uses all the available wired lines 4a to 4d. For example, the packet line controller 36 includes three wired lines 4a out of the four wired lines 4a to 4d connected between the base station 3 and the packet processing unit 35.
4c are available, the three wired lines 4
Data transmission is performed to the base station 3 using all of a to 4c.

[0006]

However, when data is transmitted to the base station 3, an available wired line 4a is required.
If all of the steps 4d to 4d are used, there is a problem that buffer overflow occurs and congestion occurs. For example, two wireless lines 2a and 2b for the base station 3 are mounted on the base station 3, and the transmission rates of the wireless lines 2a and 2b mounted on the base station 3 and the transmission rates of the wired lines 4a to 4d are different. If they are equal,
When data transmission is performed to the base station 3 using the three wired lines 4a to 4c, the packet subscriber processing unit 35 transmits to the base station 3 more than the amount of data transmitted from the base station 3 to the mobile station 1. The amount of data to be transmitted is larger. For this reason,
When the amount of data stored in the buffer 3a gradually increases and the amount of data stored in the buffer 3a exceeds the capacity of the buffer 3a, buffer overflow occurs and causes congestion.

Accordingly, an object of the present invention is to provide a wireless communication system, a line control device, a line control method, and a line control program capable of preventing buffer overflow when data is transmitted from a wired line to a wireless line. It is to be.

[0008]

According to a first aspect of the present invention, there is provided a radio communication system, comprising: a mobile station that performs mobile communication; and a mobile station that communicates with the mobile station via a radio line. A base station and a packet subscriber processing device connected to the base station via a wired line and controlling the number of wired lines used during communication so as not to exceed the number of wireless lines mounted on the base station And characterized in that:

Thus, even when data is transmitted from a plurality of wired lines to a wireless line, the amount of data transmitted from the wired line to the wireless line is limited so as not to exceed the data transmission speed of the wireless line. It is possible to prevent buffer overflow simply by monitoring / controlling the number of lines on the packet subscriber processing unit side. Also,
According to the wireless communication system of the second aspect, the packet-subscriber-based processing device may be configured such that the number of wireless lines installed in the base station is less than the number of available wired lines connected to the base station. Setting the number of use of the wired line to the number of mounted wireless lines, the number of mounted wireless lines in the base station,
When the number of available wired lines is equal to or greater than the available number of wired lines connected to the base station, the number of available wired lines is set to the available number of wired lines.

[0010] Thus, data can be transmitted to the base station using the most wired lines within a range not exceeding the data transmission speed of the wireless line, and the buffer overflow can be suppressed while suppressing a decrease in the transmission speed. Can be prevented.
According to the wireless communication system of claim 3, a mobile station that performs mobile communication, a base station that communicates with the mobile station via a wireless line, and a base station that is connected to the base station via a wired line, A packet subscriber processing unit for selecting the wired line so that the entire data transmission speed of the used wired line does not exceed the entire data transmission speed of the wireless line mounted on the base station. It is characterized by having.

Thus, even when data is transmitted from a plurality of wired lines having different transmission speeds to a wireless line, the data is transmitted from the wired line to the wireless line so as not to exceed the data transmission speed of the wireless line. It is possible to prevent buffer overflow simply by monitoring the transmission speed and selecting a wired line on the packet subscriber processing unit side.

[0012] According to the wireless communication system of the fourth aspect, the packet subscriber processing device has an overall data transmission speed of a wireless line mounted in the base station.
If the total data transmission speed of the wired line available for the base station is less than the total transmission speed of the wireless line mounted on the base station, the data transmission speed to the base station is used. If the entire data transmission speed of the wireless line mounted on the base station is equal to or higher than the entire data transmission speed of the wired line available in the base station, The present invention is characterized in that all wired lines usable for the base station are selected as the wired lines used for data transmission.

[0013] Thus, data can be transmitted to the base station so that the data transmission speed is maximized within a range not exceeding the data transmission speed of the radio line. Even when the transmission speed of each line is different, Buffer overflow can be prevented while suppressing a decrease in transmission speed. According to the line control device of the fifth aspect, the number of wired lines determining means for determining the number of wired lines usable for communication, and the number of wireless lines determining means for determining the number of wireless lines prepared for the communication And a wired line number control means for controlling the number of wired lines used during communication based on the number of wired lines and the number of wireless lines.

Thus, according to the number of radio lines mounted,
It is possible to limit the number of wired lines used, to prevent the amount of data transmitted from the wired line from exceeding the capacity of the wireless line, and to prevent buffer overflow. According to the line control device of the sixth aspect, the number of wired lines control means controls the number of wired lines used during the communication so as not to exceed the number of wireless lines prepared during the communication. Features.

Thus, even when a plurality of wired lines are used, buffer overflow can be prevented only by controlling the number of wired lines, and congestion can be prevented with a simple configuration. it can. Further, according to the line control device of the seventh aspect, a wired line speed determining means for determining a data transmission speed of a wired line usable for communication,
A wireless line speed determining means for determining an overall data transmission speed of a wireless line prepared for the communication, and a wired line selection for selecting a wired line at the time of the communication based on the overall data transmission speed of the wireless line. Means.

[0016] Thus, the transmission speed of the wired line can be limited according to the transmission speed of the wireless line. Even when the transmission speed of each line is different, the transmission amount of data sent from the wired line is reduced. It is possible to prevent buffer overflow by preventing the capacity of the line from being exceeded.
According to the line control device of the eighth aspect, the wired line selecting means may determine that the overall data transmission speed of the wired line used at the time of communication is equal to the overall data transmission speed of the wireless line prepared at the time of communication. The selection of the wired line is performed so as not to exceed.

As a result, even when the transmission speed of the wired line is different from the transmission speed of the wireless line, buffer overflow can be prevented only by selecting the wired line, and congestion can be prevented with a simple configuration. Can be prevented. According to a ninth aspect of the present invention, the number of wired lines used during the communication is controlled so as not to exceed the number of wireless lines prepared at the time of the communication.

Thus, even when data is transmitted from a plurality of wired lines to a wireless line, buffer overflow can be prevented only by controlling the number of wired lines used. Further, according to the line control method according to claim 10, the data transmission speed of the entire wired line used during communication does not exceed the entire data transmission speed of the wireless line prepared during the communication. It is characterized in that selection of a wired line is performed.

Thus, even when the transmission speeds of the wired line and the wireless line are different, it is possible to prevent buffer overflow simply by selecting the wired line.
Further, according to the line control program of claim 11,
Determining the number of wired lines available for communication, and determining the number of wireless lines prepared for the communication,
Controlling the number of use of the wired lines based on the number of wireless lines.

Thus, the number of wired lines used can be controlled in accordance with the number of wireless lines only by installing the line control program in the computer, and the buffer overflow can be prevented while suppressing the cost for equipment. be able to. According to the line control program of the twelfth aspect, a step of determining a data transmission speed of a wired line available for communication, and a step of determining an entire data transmission speed of a wireless line prepared for the communication. And selecting a wired line at the time of the communication based on the entire data transmission speed of the wireless line.

Thus, the transmission speed of the wired line can be controlled in accordance with the transmission speed of the wireless line only by installing the line control program in the computer.
Even when the transmission speed of each line is different, it is possible to prevent the buffer overflow while suppressing the cost for the equipment.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a radio communication system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a schematic configuration of the wireless communication system according to the first embodiment of the present invention. In FIG. 1, a mobile station 1 performs mobile communication via wireless lines 2a and 2b.
A PHS (Personal Handy System), a portable information terminal, or the like can be used. Also, the wireless lines 2a, 2b
For example, a digital mobile phone line, a satellite communication line, a short-range wireless data communication line “Bluetooth”
Etc. can be used.

The base station 3 provides the mobile station 1 with a radio link 2a, 2
b, which communicates with the mobile station 1 and is connected to the packet processing unit 5 via the wired lines 4a to 4d and temporarily stores data transmitted from the packet processing unit 5. Is provided. Here, it is assumed that the transmission speed (transmission capacity) of each of the wired lines 4a to 4d is equal to the transmission speed (transmission capacity) of each of the wireless lines 2a and 2b. Note that the wired lines 4a to 4a
As d, for example, a telephone line, ISDN (Integrated Services Digital Network), LAN (Local Area Network), the Internet, or the like can be used.

The packet subscriber processing unit 5 transmits packet data to the base station 3 via the wired lines 4a to 4d. The number of wireless lines and the number of the wired lines 4a to 4d are determined based on the number of wireless lines. A packet line controller 6 for controlling the number is provided. Here, the packet line control device 6 is provided with a wired line number determining unit 6a, a wireless line number determining unit 6b, and a wired line number controlling unit 6c. 4a ~
The number of 4d lines is determined. In addition, the number of wireless line number determination means 6
b determines the number of wireless lines 2a and 2b mounted on the base station 3. The number-of-wired-lines control means 6c calculates the number of use of the wired lines 4a to 4d during communication based on the number of wired lines determined by the number-of-wired-lines determination means 6a and the number of wireless lines determined by the number-of-wireless-lines determination means 6b. Control.

Here, the number of wired lines control means 6c controls the number of wired lines 4 for transmitting call processing signals so as not to exceed the number of wireless lines 2a and 2b mounted on the base station 3.
The number of use of a to 4d can be controlled. For example, the radio line number discriminating means 6b provides the base station 3 with the radio line 2
It is assumed that it is determined that only two lines a and 2b are mounted. In this case, the number of wired lines discriminating means 6a includes three wired lines 4a to 4c among the four wired lines 4a to 4d connected between the base station 3 and the packet subscriber processing unit 5. Is determined to be usable, the wired line number control means 6c uses only any two of the available wired lines 4a to 4c out of the three available wired lines 4a to 4c to transmit the base station. 3 to perform data transmission.

Thus, even when the number of wired lines available for data transmission to the base station 3 is larger than the number of wireless lines installed in the base station 3, buffer overflow in the base station 3 is prevented. be able to. In addition, each wired line 4a
If the transmission speeds of the wireless lines 2a and 2b are equal to the transmission speeds of the wireless lines 2a and 2b, the number of the wired lines 4a to 4d used for communication is made equal to the number of the wireless lines 2a and 2b mounted in the base station 3. Thus, it is possible to prevent a buffer overflow while suppressing a decrease in the data transmission speed from the packet processing unit 5 to the base station 3.

FIG. 2 is a sequence diagram showing a schematic operation of the wireless communication system according to the first embodiment of the present invention. In FIG. 2, when the packet line controller 6 of FIG. 1 is activated (K1), the packet line controller 6 investigates the number of wire lines available for communication with the base station 3 (K2), Requests a wireless line survey to the base station 3 (K
3). Upon receiving the wireless channel check request, the base station 3 checks the number of wireless links mounted on the base station 3 and the transmission speed of each wireless link, and sends the check result to the packet line controller 6.
(K4). When there is a response of the number of wireless lines and the transmission speed of each wireless line, the packet line control device 6 determines the number of available wired lines and the number of wireless lines mounted in the base station 3 based on the result of the investigation. Then, the number of wire lines actually used is determined (K5).

When the number of wired lines to be used is determined, the packet subscriber processing device 5 determines the determined number of wired lines 4.
Data transmission is performed to the base station 3 via a to d (K
6). When data is transmitted from the packet processing unit 5, the base station 3 stores the data in the buffer 3a. Then, the data stored in the buffer 3a is read out, and the data is transmitted via the wireless lines 2a and 2b (K7).

FIG. 3 is a flowchart showing a method for setting the number of lines in the wireless communication system according to the first embodiment of the present invention. In FIG. 3, the packet line controller 6 of FIG.
When performing data transmission to the base station 3, it checks the number of available wired lines connected to the base station 3 (the number of available wired lines) (step S 1) and is mounted on the base station 3. The number of wireless lines (the number of mounted wireless lines) is checked (step S2).

Then, based on the results of these surveys, the number of available wired lines is compared with the number of mounted wireless lines (step S3). The number of wired lines actually used for the data transmission (the number of used wired lines) is set to the number of mounted wireless lines (step S4), and data transmission to the base station 3 is performed (step S5).

On the other hand, in step S3, if the number of available wired lines is equal to or less than the number of mounted wireless lines, the number of available wired lines is set to the number of available wired lines (step S6), and data is transmitted to the base station 3 (step S6). Step S5). FIG.
FIG. 9 is a block diagram illustrating a schematic configuration of a wireless communication system according to a second embodiment of the present invention. In FIG. 4, in this wireless communication system, a packet subscriber processing unit 15 is provided in addition to the mobile station 1 and the base station 3, and the packet subscriber processing unit 15 is connected to the base station via wired lines 14a to 14c. Station 3 is connected. Here, each of the wired lines 14a to 14
It is assumed that the transmission speed (transmission capacity) of d is different from the transmission speed (transmission capacity) of each wireless line 2a, 2b.

The packet subscriber processing unit 15 transmits packet data to the base station 3 via the wired lines 14a to 14c, and controls the wired lines 14a to 14c based on the wireless line speed and the wireless line speed. And a packet line controller 16 for performing the above. Here, the packet line controller 16 includes a wire line speed discriminator 16a,
Wireless line speed determining means 16b and wired line selecting means 1
6c is provided, and the wired line speed determining means 16a determines the transmission speed of each of the wired lines 14a to 14c. Further, the wireless line speed determining means 16b determines the overall transmission speed of the wireless lines 2a and 2b mounted on the base station 3. The wired line selecting means 16c is provided with a wired line speed determining means 16a.
Based on the transmission speed of each of the wired lines 14a to 14c determined by the above and the overall transmission speed of the wireless lines 2a and 2b determined by the wireless line speed determining means 16b, the transmission speed of the wired lines 14a to 14c actually used during communication is determined. Make a selection.

Here, the wire line selecting means 16c can select the wire lines 14a to 14c so as not to exceed the entire transmission speed of the wireless lines 2a and 2b mounted on the base station 3. When there are a plurality of combinations of the wired lines 14a to 14c which do not exceed the entire transmission speed of the wireless lines 2a and 2b mounted on the base station 3, the total transmission speed of the combinations of the wired lines 14a to 14c is included. Can be selected.

For example, two radio lines 2a and 2b mounted on the base station 3 are used, and available wired lines 14a to 14a
4c, there are three lines, and the transmission speed per line of the wired lines 14a to 14c is 1.5 times the transmission speed per line of the wireless lines 2a, 2b. In this case, the actually used wired lines 14a to 14c are set to match the number of wireless lines 2a and 2b mounted on the base station 3.
Is determined, the transmission speed of the data transmitted via the wired lines 14a to 14c is reduced to the wireless lines 2a and 2b.
Is 1.5 times the overall transmission speed, and buffer overflow occurs.

For this reason, the wired line selecting means 16c selects only one of the actually used wired lines 14a to 14c. As a result, the transmission speed of data transmitted via the wired lines 14a to 14c can be prevented from exceeding the overall transmission speed of the wireless lines 2a and 2b. 2a, 2b transmission speed,
Even when the available transmission speeds of the wired lines 14a to 14c are different, it is possible to prevent the buffer overflow in the base station 3.

FIG. 5 is a flowchart showing a method for setting the number of lines in a wireless communication system according to the second embodiment of the present invention. In FIG. 5, when data transmission to the base station 3 is performed, the packet line controller 16 checks the number of available wired lines and the transmission speed of each wired line (step S11), and transmits the entire mounted wireless line. The speed is checked (step S12).

Then, based on the results of these investigations, the overall transmission speed of the available wired line (total available wired line speed) is compared with the overall transmission speed of the mounted wireless line (total mounted wireless line speed). (Step S13) If the total available wired line speed exceeds the total mounted wireless line speed, the number of used wired lines is set so as not to exceed the total mounted wireless line speed (Step S14), and data is transmitted to the base station 3. Is performed (step S16).

On the other hand, in step S13, if the total available wired line speed is equal to or less than the total mounted wireless line speed,
The number of used wired lines is set to the number of usable wired lines (step S16), and data is transmitted to the base station 3 (step S15). FIG. 6 is a diagram showing the presence / absence of occurrence of buffer overflow in the wireless communication system of the present invention in comparison with a conventional example.
In FIG. 6A, in the conventional line control method, when determining the number of used wired lines, the number is always set to the number of usable wired lines regardless of the number of mounted wireless lines. For this reason,
If the number of available wired lines exceeds the number of mounted wireless lines, buffer overflow may occur.

On the other hand, in FIG. 6B, in the line control method of FIG. 3, when determining the number of used wired lines, not only the number of usable wired lines but also the number of mounted wireless lines are considered. If the number of usable wired lines exceeds the number of mounted wireless lines, the number of used wired lines is limited to the number of mounted wireless lines. On the other hand, if the number of available wired lines is less than the number of mounted wireless lines,
Set the number of used wired lines to the number of available wired lines.

Therefore, even when the number of usable wired lines exceeds the number of mounted wireless lines, it is possible to prevent the number of actually used wired lines from exceeding the number of mounted wireless lines. The data transmission can be performed using the largest number of wired lines as long as the buffer overflow does not occur, and a reduction in the data transmission speed can be suppressed.

In FIG. 6 (c), in the line control method of FIG. 5, when selecting the used wired line, the transmission speed of the wired line and the wireless line is considered instead of the number of the wired line and the wireless line. . And, when the total available wired line speed exceeds the total mounted wireless line speed, so that the total used wired line speed does not exceed the total mounted wireless line speed,
Set the number of wired lines used. On the other hand, when the total available wired line speed is equal to or less than the total mounted wireless line speed, the number of used wired lines is set to the number of available wired lines.

For this reason, even when the transmission speed is different between the wired line and the wireless line, the transmission speed of the data transmitted from the wired line can be suppressed to be lower than the transmission speed of the data transmitted from the wireless line. Buffer overflow can be prevented. FIG. 7 is a block diagram illustrating a schematic configuration of the wireless communication system according to the third embodiment of the present invention. In FIG. 7, the base station 3 of FIG. 4 and the packet processing unit 15 are connected via wired lines 14a to 14c, whereas in the wireless communication system of FIG. Wired line 2 with the processing unit 15
They are connected via 4a to 24d. Then, for example, the wireless lines 2a and 2b mounted on the base station 3 are 2
Line, wired line 2 usable for data transmission to base station 3
4a to 24d are four lines, the transmission speed of the wired line 24a is 1.5 times the transmission speed of one of the wireless lines 2a and 2b, and the transmission speed of one of the wired lines 24b to 24d is the wireless line. It is assumed that the transmission speed per line of 2a, 2b is 0.6 times.

Here, the wired line selecting means 16c simply operates the wired lines 24a to 24b so as not to exceed the overall transmission speed of the wireless lines 2a and 2b mounted on the base station 3.
When you select d, if you select 2 lines from here,
Since the transmission speed exceeds the entire transmission speed of the wireless lines 2a and 2b, only the wired line 24a is selected. For this reason, the packet processing unit 15 can transmit data only at a transmission rate of 1.5 / 2 = 0.75 times the total transmission capacity of the wireless lines 2a and 2b. Speed decreases.

Therefore, the wire line selecting means 16c calculates the transmission speed for all combinations of the available wire lines 24a to 24d. Then, from these combinations, the combination having the maximum transmission speed that is equal to or less than the entire transmission capacity of the wireless lines 2a and 2b is selected. As a result, the wired line selecting unit 16c can select the wired lines 24b to 24d instead of the wired line 24a as the actually used wired line.
Therefore, the packet-subscriber-based processing device 15 adds 0.6 × 3/2 = 0.6 × 3/2 to the entire transmission capacity of the wireless lines 2a and 2b.
Data can be transmitted at 0.9 times the transmission speed, and the data transmission speed can be improved as compared with the case where the wired line 24a is selected.

FIG. 8 is a flowchart showing a method for setting the number of lines in a wireless communication system according to the third embodiment of the present invention. In FIG. 8, when data transmission to the base station 3 is performed, the packet line controller 16 checks the number of usable wire lines and the transmission speed of each wire line (step S21), and transmits the entire mounted radio line. The speed is checked (step S22).

Then, based on the results of these investigations, the overall transmission speed of the available wired line (total available wired line speed) is compared with the overall transmission speed of the mounted wireless line (total mounted wireless line speed). (Step S23) If the total available wired line speed exceeds the total mounted wireless line speed, the sum of the transmission speeds is obtained for each of the combinations of available wired lines that are equal to or less than the total installed wireless line speed (Step S24). ). Then, among these combinations, the available wired line having the highest total transmission speed is selected as the used wired line (step S2).
5) Perform data transmission to base station 3 (step S2)
6).

On the other hand, in step S23, if the total available wired line speed is equal to or less than the total mounted wireless line speed,
The number of used wired lines is set to the number of usable wired lines (step S27), and data is transmitted to the base station 3 (step S26). As a result, even when the wired lines 24a to 24d having different transmission speeds are mixed, it is possible to prevent the buffer overflow from occurring and to minimize the reduction in the transmission speed.

[0048]

As described above, according to the present invention,
Even when data is transmitted from a plurality of wired lines to a wireless line, the amount of data transmitted from the wired line to the wireless line can be limited so as not to exceed the data transmission speed of the wireless line. This can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a wireless communication system according to a first embodiment of the present invention.

FIG. 2 is a sequence diagram illustrating a schematic operation of the wireless communication system according to the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating a method of setting the number of lines in the wireless communication system according to the first embodiment of the present invention.

FIG. 4 is a block diagram illustrating a schematic configuration of a wireless communication system according to a second embodiment of the present invention.

FIG. 5 is a flowchart illustrating a method of setting the number of lines in a wireless communication system according to a second embodiment of the present invention.

FIG. 6 is a diagram showing the presence / absence of occurrence of buffer overflow in the wireless communication system of the present invention in comparison with a conventional example.

FIG. 7 is a block diagram illustrating a schematic configuration of a wireless communication system according to a third embodiment of the present invention.

FIG. 8 is a flowchart illustrating a method of setting the number of lines in a wireless communication system according to a third embodiment of the present invention.

FIG. 9 is a block diagram illustrating a schematic configuration of a conventional wireless communication system.

FIG. 10 is a sequence diagram showing a schematic operation of a conventional wireless communication system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Mobile station 2a, 2b Wireless line 3 Base station 3a Buffer 4a-4d, 14a-14c, 24a-24d Wired line 5, 15 Packet subscriber processing unit 6, 16 Packet line controller 6a Wired line number discriminating means 6b Wireless Line number discriminating means 6c Wire line number controlling means 16a Wire line speed discriminating means 16b Wireless line speed discriminating means 16c Wire line selecting means

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5K051 AA01 BB02 BB05 CC07 DD01 DD13 DD15 FF02 FF03 FF11 FF12 5K067 AA26 BB04 DD42 EE02 EE10 EE16 GG01 GG11 HH05 HH12 KK13 KK15

Claims (12)

[Claims] 1. A mobile station for performing mobile communication, a base station for performing communication with the mobile station via a wireless line, and a wireless station connected to the base station via a wired line and mounted on the base station. A wireless communication system comprising: a packet-subscriber-based processing device that controls the number of wired lines used for communication so as not to exceed the number of lines. 2. The packet processing system according to claim 1, wherein the number of wireless lines installed in the base station is less than the number of available wired lines connected to the base station. Is set to the number of mounted wireless lines.If the number of mounted wireless lines at the base station is equal to or greater than the available number of wired lines connected to the base station, the number of used wired lines is set to the number of wired lines. 2. The wireless communication system according to claim 1, wherein the number is set to the number of usable lines. 3. A mobile station for performing mobile communication, a base station for performing communication with the mobile station via a wireless line, and an entire data of a wired line used and connected to the base station via a wired line. A wireless communication system comprising: a packet processing unit for selecting the wired line so that a transmission speed does not exceed an entire data transmission speed of a wireless line mounted in the base station. . 4. The packet processing system according to claim 1, wherein an overall data transmission speed of a wireless line mounted on the base station is less than an overall data transmission speed of a wired line usable in the base station. In such a case, a wire line used for data transmission to the base station is selected so as not to exceed the entire data transmission speed of the wireless line mounted on the base station, and the wireless line mounted on the base station is selected. When the entire data transmission speed of the line is equal to or higher than the entire data transmission speed of the wired line available to the base station, the line can be used for the base station as a wired line used for data transmission to the base station. The wireless communication system according to claim 3, wherein all the wired lines are selected. 5. A wired line number determining means for determining the number of wired lines usable for communication; a wireless line number determining means for determining the number of wireless lines prepared for the communication; A line control device comprising: a line number control unit that controls the number of wire lines used during communication based on the number of lines. 6. The line according to claim 5, wherein said wired line number control means controls the number of wired lines used during said communication so as not to exceed the number of wireless lines prepared during said communication. Control device. 7. A wired line speed determining unit for determining a data transmission speed of a wired line usable for communication, a wireless line speed determining unit for determining an entire data transmission speed of a wireless line prepared for the communication, A line control unit for selecting a wired line at the time of the communication based on an overall data transmission speed of the wireless line. 8. The wired line selecting means, wherein the overall data transmission speed of the wired line used during communication does not exceed the overall data transmission speed of the wireless line prepared during communication. The line control device according to claim 7, wherein the selection is performed. 9. A line control method, wherein the number of wired lines used during communication is controlled so as not to exceed the number of wireless lines prepared during communication. 10. The wired line is selected so that the overall data transmission speed of a wired line used during communication does not exceed the overall data transmission speed of a wireless line prepared during said communication. Line control method. 11. A step of determining the number of wired lines available for communication, a step of determining the number of wireless lines prepared for the communication, and controlling the number of wired lines to be used based on the number of wireless lines. And a line control program for causing a computer to execute the steps. 12. A step of determining a data transmission rate of a wired line usable for communication, a step of determining an overall data transmission rate of a wireless line prepared for the communication, and a step of determining overall data transmission of the wireless line. A step of selecting a wired line at the time of communication based on a speed.