An object of this invention is to allow a wireless terminal device to issue a request of connection using a distributed control method or central control method to a wireless control device in consideration of connection states of wireless terminal devices other than itself under management of the wireless control device. A wireless terminal device (101) acquires a beacon frame interval (602), maximum contention free period (CFP) duration (604), and CF-END average time (701) from beacon information (M800) announced from a wireless video processing device (102). The wireless terminal device determines an access control method based on a first conditional formula (702) and second conditional formula (703) using them (602, 604 and 701). The wireless terminal device transmits a TS addition request message (M906) which includes the determined access control method, type information, and bandwidth request to the wireless video processing device (102).