Wireless communication apparatus and packet transfer method thereof

1 . A wireless communication apparatus comprising:

a combined information packet transmitter that transmits a combined information packet to another wireless communication apparatus, the combined information packet being specified with each packet length of a plurality of packets having a packet length other than a predetermined transfer unit or different packet length; and

a combined packet transmitter that transmits a combined packet to the another wireless communication apparatus, the combined packet being the plurality of packets combined.

2 . The wireless communication apparatus according to claim 1 , wherein the another wireless communication apparatus is a wireless USB (Universal Serial Bus) device or a device wire adapter connected with a USB device,

the combined information packet transmitter transmits the combined information packet to a first endpoint included in the wireless USB device or the device wire adapter, and

the combined packet transmitter transmits the combined packet to a second endpoint included in the wireless USB device or the device wire adapter.

3 . The wireless communication apparatus according to claim 2 , wherein the first endpoint is an endpoint for control, and

the second endpoint is an endpoint for receiving data.

4 . The wireless communication apparatus according to claim 1 , wherein the another wireless communication apparatus is a device wire adapter connected with a USB device, and

the plurality of packets include a packet that requests to transfer data to the USB device.

5 . The wireless communication apparatus according to claim 1 , wherein the wireless communication apparatus obtains the plurality of packets from a USB device connected to the apparatus itself.

6 . The wireless communication apparatus according to claim 5 , wherein the combined information packet transmitter includes in the combined information packet a packet length of a packet indicating a data obtained result from the USB device, and

the combined packet transmitter combines the plurality of packets with the packet indicating the data obtained result.

7 . A wireless communication apparatus comprising:

a combined packet receiver that receives a combined information packet and a combined packet, the combined information packet being specified with each packet length of a plurality of packets having a packet length other than a predetermined transfer unit or different packet length, and the combined packet being the plurality of packets combined; and

a combined packet divider that divides the combined packet into the plurality of packets based on the combined information packet.

8 . The wireless communication apparatus according to claim 7 , wherein the another wireless communication apparatus is a wireless USB device or a device wire adapter connected with a USB device, and

the combined packet receiver receives the combined information packet and the combined packet respectively from a first endpoint and a second endpoint included in the wireless USB device or the device wire adapter.

9 . The wireless communication apparatus according to claim 8 , wherein the first endpoint is an endpoint for control, and

the second endpoint is an endpoint for transmitting data.

10 . A method of transferring packets comprising:

transmitting a combined information packet to a wireless communication apparatus, the combined information packet being specified with each packet length of a plurality of packets having a packet length other than a predetermined transfer unit or different packet length; and

transmitting a combined packet to the wireless communication apparatus, the combined packet being the plurality of packets combined.

11 . The method according to claim 10 , wherein if the wireless communication apparatus is a wireless USB device or a device wire adapter connected with a USB device, the method further comprising:

transmitting the combined information packet to a first endpoint included in the wireless USB device or the device wire adapter; and

transmitting the combined packet to a second endpoint included in the wireless USB device or the device wire adapter.

12 . The method according to claim 11 , wherein an endpoint for control is used as the first endpoint, and

an endpoint for receiving data is used as the second endpoint.

13 . The method according to claim 10 , wherein if the wireless communication apparatus is a device wire adapter connected with a USB device, the method further comprising:

including in the plurality of packets a packet requesting to transfer data to the USB device.

14 . The method according to claim 10 , wherein the plurality of packets are obtained from a USB device.

15 . The method according to claim 14 , further comprising:

including in the combined information packet a packet length of a packet indicating a data obtained result from the USB device; and

combining the plurality of packets and the packet indicating the data obtained result.

16 . A method of transferring packets comprising:

receiving a combined information packet and a combined packet, the combined information packet being specified with each packet length of a plurality of packets having a packet length other than a predetermined transfer unit or different packet length, and the combined packet being the plurality of packets combined; and

dividing the combined packet into the plurality of packets based on the combined information packet.

17 . The method according to claim 16 , wherein if the wireless communication apparatus is a wireless USB device or a device wire adapter connected with a USB device, the method further comprising:

receiving the combined information packet and the combined packet respectively from a first endpoint and a second endpoint included in the wireless USB device or the device wire adapter.

18 . The method according to claim 17 , wherein an endpoint for control is used as the first endpoint, and

an endpoint for transmitting data is used as the second endpoint.