US 9,813,984 B2
Method of saving power of station in wireless network
Beomjin Kim, Seongnam-si (KR); and David Cohen, Milpitas, CA (US)
Assigned to FCI INC, Seongnam-si, Gyeonggi-do (KR)
Filed by FCI INC, Seongnam-si, Gyeonggi-do (KR)
Filed on Sep. 4, 2015, as Appl. No. 14/846,270.
Prior Publication US 2017/0070953 A1, Mar. 9, 2017
Int. Cl. G08C 17/00 (2006.01); H04W 52/02 (2009.01); H04W 12/06 (2009.01)
CPC H04W 52/0206 (2013.01) [H04W 12/06 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of saving power of a station in wireless network, the station comprising a connectivity module, a central processing unit (CPU), a timer, and peripheral devices, the method comprising:
upon receiving a wake-up signal which is generated when the timer expires by a predetermined time period, powering on the connectivity module, the central processing unit, and the peripheral devices;
performing the central processing unit, the peripheral devices, and e connectivity module in a connection state or in an authenticated state;
upon a condition that there is no data to be transferred to the station or after the station transmits and receives all needed data, performing a sleep mode to power off the connectivity module, the central processing unit, and the peripheral devices; and
upon a condition that there is data to be transferred by checking delivery traffic indication message (DTIM) from an access point, performing the connectivity module in the authenticated state,
wherein the predetermined time period is longer than an interval between two delivery traffic indication messages from the access point.