Communication control method, communication apparatus, and communication system

1. A communication control method employed by a communication apparatus including a primary communication interface and a plurality of relay communication interfaces and having a communication interface coupling function of transferring a transmission/reception frame of the primary communication interface through one of the plurality of relay communication interfaces, the method comprising the steps of:

acquiring traffic information concerning the primary communication interface; and

using a control device having a central processing unit to dynamically vary a transfer allocation ratio between the plurality of relay communication interfaces based on the traffic information so as to increase a traffic volume through the primary communication interface.

2. The communication control method according to claim 1 , wherein the transfer allocation ratio is varied recursively based on the traffic information concerning the primary communication interface.

3. The communication control method according to claim 1 , wherein,

the primary communication interface is a wired LAN interface, and

the plurality of relay communication interfaces include a power line communication interface and a wireless LAN interface.

4. The communication control method according to claim 1 , wherein the transfer allocation ratio is varied at random.

5. The communication control method according to claim 1 , wherein the transfer allocation ratio is varied to different ratios depending on a size of the transmission/reception frame obtained as the traffic information concerning the primary communication interface.

6. A communication control method employed by a communication apparatus including a primary communication interface and a plurality of relay communication interfaces and having a communication interface coupling function of transferring a transmission/reception frame of the primary communication interface through one of the plurality of relay communication interfaces, the method comprising the steps of:

acquiring traffic information concerning the primary communication interface; and

using a control device having a central processing unit to dynamically vary a transfer allocation ratio between the plurality of relay communication interfaces based on the traffic information,

wherein the transfer allocation ratio is varied recursively based on the traffic information concerning the primary communication interface, and

wherein,

when a traffic volume of the primary communication interface has increased after the transfer allocation ratio between the plurality of relay communication interfaces is varied, the transfer allocation ratio is varied next time in the same direction as that in which the transfer allocation ratio was varied the last time, and

when the traffic volume of the primary communication interface has decreased after the transfer allocation ratio between the plurality of relay communication interfaces is varied, the transfer allocation ratio is varied next time in an opposite direction to that in which the transfer allocation ratio was varied the last time.

7. A communication apparatus, comprising:

a primary communication interface;

a plurality of relay communication interfaces; and

a control device to acquire traffic information concerning said primary communication interface, and dynamically vary a transfer allocation ratio between said plurality of relay communication interfaces based on the traffic information so as to increase a traffic volume through the primary communication interface,

the communication apparatus having a communication interface coupling function of transferring a transmission/reception frame of said primary communication interface through one of said plurality of relay communication interfaces.

8. A communication system, comprising

two or more communication apparatuses,

each of said two or more communication apparatuses including

a primary communication interface,

a plurality of relay communication interfaces, and

a control device to acquire traffic information concerning the primary communication interface, and dynamically vary a transfer allocation ratio between the plurality of relay communication interfaces based on the traffic information so as to increase a traffic volume through the primary communication interface,

each of said two or more communication apparatuses having a communication interface coupling function of transferring a transmission/reception frame of the primary communication interface through one of the plurality of relay communication interfaces,

each of the plurality of relay communication interfaces of each of said two or more communication apparatuses being connected to a corresponding one of the plurality of relay communication interfaces of another of said two or more communication apparatuses.