| 摘要 |
<p>A terminal device (101) for control of AV data between communicating entities on a network via a wireless link, the device comprising:
an interface section (501) for performing sending and receiving of packets with a remote communicating entity;
a link setting section (503) for setting a link for control and for data transfer with the remote communicating entity;
a wireless link information acquisition section (504) for acquiring wireless link information indicating the condition of a wireless link of a local terminal device, the condition constantly varying, and for updating the wireless link information acquired at the time of setting the link by the current dynamically acquired wireless link Information; characterized by
a wireless link information storage section (509) for storing the acquired and updated wireless link information as Descriptor information defined in the Service Discovery Protocol. SDP, and defined in the AV/C protocol, and being referable by the remote communicating entity:
a remote wireless link information collecting section (504) for collecting remote wireless link information indicating the condition of a remote wireless link to append it to the Descriptor information by sending a SDP command for requesting the remote communioating entity to give notification of Descriptor information stored at the remote communicating entity side; and
an application section (508) for, by referring to the Descriptor information, determining whether or not data can be transferred and, if data transfer is possible, generating a data transfer command with a transfer rate with the remote communicating entity in accordance with the Descriptor information.
</p> |
