Controller, communication terminal, and wireless communication system

摘要

A control point device that reduces delay in a power-saving wireless network includes a normal data generating unit that generates 1st-type data, a preferential data generating unit that generates 2nd-type data different from the 1st-type data, a determining unit that determines an active period length, a beacon generating unit that generates a broadcasting signal including information corresponding to the determined length of the active period, and a transmitting unit that transmits the broadcasting signal to the terminal on a frame basis. The determining unit shortens the length of the active period when the preferential data generating unit generates the 2nd-type data, and a preferential data period is set in an ex-active period obtained by the shortening of the active period, the preferential data period being a period during which the 2nd-type data is transmitted. The transmitting unit transmits the 2nd-type data to the terminal during the preferential data period.

主权项

1. A controller comprising:
a normal data generating unit configured to generate 1st-type data; a preferential data generating unit configured to generate 2nd-type data that is different from the 1st-type data; a determining unit configured to determine a length of an active period included in a frame that is repetitive unit time, the active period being a period during which communication with a terminal in the frame is performed; a signal generating unit configured to generate a broadcasting signal including information corresponding to the determined length of the active period; and a transmitting unit configured to transmit the broadcasting signal to the terminal on a frame basis by wireless communication with the terminal, and to transmit the 1st-type data during the active period, wherein the determining unit is configured to shorten the length of the active period in the case where the preferential data generating unit generates the 2nd-type data as compared to the case where the preferential data generating unit does not generate the 2nd-type data, and to set a preferential data period in an ex-active period obtained by the shortening of the active period, the preferential data period being a period during which the 2nd-type data is transmitted, and the transmitting unit is configured to transmit the 2nd-type data to the terminal during the preferential data period.