US 2008/0165722 A1 · RADIO COMMUNICATION SYSTEM ALLOWING RADIO COMMUNICATION WITH REDUCED LOAD

Abstract

A radio communication system includes a plurality of radio devices and a plurality of terminal devices. The plurality of radio devices forms a mesh-type radio network. A plurality of terminal devices belong to a radio device and another plurality of terminal devices belong to another radio device. The plurality of radio devices each have global terminal connection information representing the connection between the terminal devices and the radio devices in the entire radio communication system. A radio device and another radio device relay radio communication between a terminal device and another terminal device using the global terminal connection information. When any of its subordinate terminal devices changes, each of the plurality of radio devices floods only the change information in the radio communication system.

Claims14

Dependent claims

A radio communication system, comprising:

a first radio device;
a first terminal device connected with said first radio device;
a second radio device;
and
a second terminal device connected with said second radio device,
said first and second radio devices constructing terminal connection information representing the connection between the radio devices and the terminal devices as required and relay radio communication between said first terminal device and said second terminal device.

3 more elements

A radio communication system including a plurality of radio devices each connected with at least one terminal device, comprising:

a first radio device that does not hold global terminal connection information representing the entire connection between the radio devices and the terminal devices in the radio communication system;
a first terminal device connected with said first radio device;
a second radio device that does not hold said global terminal connection information;
a second terminal device connected with said second radio device;
and
a third radio device having said global terminal connection information, wherein
when said first radio device receives a packet destined to said second terminal device from said first terminal device and does not have first local terminal connection information representing the connection between said second terminal device and said second radio device, said first radio device transmits said packet to said second radio device with the aid of said third radio device,
said second radio device receives said packet and transmits the received packet to said second terminal device, and
said second terminal device receives said packet transmitted from said second radio device.

6 more elements

A radio communication system that allows a terminal device to carry out radio communication with another terminal device through a radio device, comprising a plurality of radio devices each connected with at least one terminal device and each having global terminal connection information representing the entire connection between the radio devices and the terminal devices in the radio communication system, wherein

when the topology in said radio communication system changes, said plurality of radio devices transmit/receive the change in said topology by minimum necessary communication.

Dependencies are inferred from the claim text.

Radio communication system allowing radio communication with reduced load

Life of this patent

Radio communication system allowing radio communication with reduced load

Life of this patent

Abstract

Claims14