JP2004165914A5

JP2004165914A5 -

Info

Publication number: JP2004165914A5
Application number: JP2002328413A
Authority: JP
Filing date: 2002-11-12
Publication date: 2005-09-15

Claims

In a wireless network connection device that wirelessly communicates with a plurality of wireless stations and connects these wireless stations to a communication network,
First communication means for receiving multicast data from the communication network;
Wireless communication is performed with each of the plurality of wireless stations, multicast data received by the first communication unit is transmitted to the plurality of wireless stations, and retransmission is performed for the wireless stations that have not received the multicast data. And a second communication means.

The second communication means includes
Conversion means for converting the multicast data received by the communication means into single cast data respectively addressed to the plurality of wireless stations;
2. The wireless communication unit according to claim 1, further comprising a wireless communication unit that wirelessly communicates with each of the plurality of wireless stations and transmits a plurality of single cast data obtained by the conversion unit to a corresponding wireless station. Wireless network connection device.

When the wireless communication means receives the response signal from the wireless station after transmitting the singlecast data to the corresponding wireless station, the wireless communication means transmits singlecast data that continues to the singlecast data, 3. The wireless network connection device according to claim 2, wherein when the response signal is not received, the single cast data that could not be received is retransmitted to the radio station that cannot receive the response signal.

The second communication means includes
Conversion means for converting the multicast data received by the communication means into single cast data respectively addressed to the plurality of wireless stations;
Storage means for storing single cast data respectively addressed to the plurality of wireless stations obtained by the conversion means;
2. The wireless network according to claim 1, further comprising: a wireless communication unit that performs wireless communication with each of the plurality of wireless stations, reads single cast data from the storage unit, and transmits the single cast data to a corresponding wireless station. Connected device.

When the wireless communication means receives the response signal from the wireless station after transmitting the single cast data to the corresponding wireless station, the single cast data continued to the single cast data is read from the storage means and transmitted. 5. On the other hand, when no response signal is received from the radio station, single-cast data that could not be received by a radio station that cannot receive a response signal is read from the storage means and retransmitted. The wireless network connection device described in 1.

The wireless network connection according to claim 3 or 5, wherein the wireless communication means performs retransmission within a range of a preset number of times when a response signal is not received from the wireless station. apparatus.